diff --git a/.github/workflows/make_update_prs.yml b/.github/workflows/make_update_prs.yml
new file mode 100644
index 00000000..605e90a0
--- /dev/null
+++ b/.github/workflows/make_update_prs.yml
@@ -0,0 +1,112 @@
+name: Update Member Pages
+
+on:
+  schedule:
+    - cron: '0 0 30 6,12 *'  # Every June 30 and December 30 at midnight UTC
+  workflow_dispatch:
+
+jobs:
+  update-pages:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+
+    - name: Install dependencies
+      run: pip install PyGithub python-dateutil
+
+    - name: Run update script
+      env:
+        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        REPO: ${{ github.repository }}
+      run: |
+        python <<EOF
+        import os
+        import re
+        import subprocess
+        from datetime import datetime
+        from dateutil.relativedelta import relativedelta
+        from github import Github
+
+        def check_date(filepath):
+            try:
+                result = subprocess.check_output(
+                    ["git", "log", "-1", "--format=%ad", "--", filepath], text=True
+                ).strip()
+                last_edit = datetime.strptime(result, "%a %b %d %H:%M:%S %Y %z")
+                threshold = datetime.now(last_edit.tzinfo) - relativedelta(months=6)
+                return last_edit < threshold
+            except subprocess.CalledProcessError:
+                return True  # Consider as out-of-date if not in history
+
+        with open("members.txt", "r") as f:
+            lines = f.readlines()
+
+        members = []
+        skip_sections = {"visitors", "alumni"}
+        in_skip_section = False
+
+        for line in lines:
+            line = line.strip()
+            if not line or line.lower() in skip_sections:
+                in_skip_section = True
+                continue
+            if line.lower() == "header":
+                in_skip_section = False
+                continue
+            if in_skip_section:
+                continue
+
+            match = re.match(r"-?\s*(.*) - (\S+)", line)
+            if match:
+                name, github_username = match.groups()
+                filename = "_".join(name.lower().strip().split())
+                members.append({
+                    "github": github_username,
+                    "file": f"members/{filename}.md"
+                })
+
+        g = Github(os.environ["GH_TOKEN"])
+        repo = g.get_repo(os.environ["REPO"])
+
+        for member in members:
+            path = member["file"]
+            if not os.path.exists(path):
+                print(f"File {path} not found, skipping.")
+                continue
+
+            if check_date(path):
+                branch_name = f"update-{member['github'].lower()}"
+                subprocess.run(["git", "checkout", "-b", branch_name], check=True)
+
+                with open(path, "a") as f:
+                    f.write("\nThis page has become out-of-date.\n")
+
+                subprocess.run(["git", "config", "user.name", "github-actions"], check=True)
+                subprocess.run(["git", "config", "user.email", "github-actions@github.com"], check=True)
+                subprocess.run(["git", "add", path], check=True)
+                subprocess.run(["git", "commit", "-m", f"Mark {member['file']} as out-of-date"], check=True)
+                subprocess.run(["git", "push", "-u", "origin", branch_name], check=True)
+
+                body = f"This page has been automatically marked as out-of-date.\n\n@{member['github']}"
+                pr = repo.create_pull(
+                    title=f'Mark {member["file"]} page as out-of-date',
+                    body=body,
+                    head=branch_name,
+                    base="main"
+                )
+                pr.add_to_assignees(member["github"])
+
+                subprocess.run(["git", "checkout", "main"], check=True)
+                subprocess.run(["git", "branch", "-D", branch_name], check=True)
+        EOF
+
diff --git a/README.md b/README.md
index b0e4ea56..e635e0ed 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 ## Adding your page to the website
 1. Begin by cloning the repository to your local computer. You can do this by clicking the green `<> code` button above, copying the URL to your clipboard, and then executing `git clone link` in the terminal in which you paste the link in place of the word `link` in your desired local directory.
 2. In the terminal, travel to the website directory. Remain there for the rest of the instructions. Create a new branch by executing `git checkout -b your_name_branch` in the terminal.
-3. Add your name to `members.txt` (by running `nano members.txt` in the terminal) under the appropriate category in alphabetic order by last name. Type your name _exactly_ how you would like it to show up in the directory.
+3. Add your name to `members.txt` (by running `nano members.txt` in the terminal) under the appropriate category in alphabetic order by last name. Type your name _exactly_ how you would like it to show up in the directory, followed by a dash ' - ' and your GitHub username.
 4. Execute `cp members/example_student.md members/your_name.md` in terminal where `your_name` is the name you wrote in (3), but lowercase and with '_' instead of spaces. This will create a file `members/your_name.md` that is an exact copy of `members/example_student.md`.
 5. Fill out `members/your_name.md`! Access the file by executing `nano members/your_name.md` and make sure to replace all instances of `example student` with your name. 
 6. Add a professional photo (preferably square aspect ratio) at `assets/img/your_name.png`. This can be done manually on the cumputer desktop or by executing `cp /path/to/source/your_name.png ./assets/img`, where `/path/to/source` is the path to where the image is on your computer.
diff --git a/make_member_page.py b/make_member_page.py
index 30812fc4..2bf9e214 100755
--- a/make_member_page.py
+++ b/make_member_page.py
@@ -1,20 +1,23 @@
+import re
 import os
 
 with open("members/index.md", "w") as outf:
     outf.write("---\nlayout: default\n---\n# Cersonsky Lab Members\n\n")
-    outf.write("<head>\n<style>\n.profile-container {\n display: flex;\n flex-direction: row;\n flex-wrap: wrap;\n"
-               " justify-content: center;\n align-items: center;\n gap: 25px 10px;\n max-width: 700px;\n"
-               " margin-left: auto;\n margin-right: auto;\n margin-top: 20px;\n margin-bottom: 20px;\n}\n"
-               ".profile {\n text-align: center;\n width: 210px;\n}\n\n"
-               "ul {\n list-style-type: none;\n padding: 0\n}\n\n"
-               "li {\n text-align: center;\n}\n\n"
-               "@media print, screen and (max-width: 1100px) {\n .profile-container {\n  max-width: 450px\n }\n"
-               " .profile{\n  width: 47%;\n }\n\n"
-               "@media print, screen and (max-width: 960px) {\n .profile-container {\n  max-width: 700px\n }\n"
-               " .profile{\n  width: 31%;\n }\n\n"
-               "@media print, screen and (max-width: 720px) {\n .profile-container {\n  max-width: 450px\n }\n"
-               " .profile{\n  width: 47%;\n }\n\n"
-               "</style>\n</head>\n\n")
+    outf.write(
+        "<head>\n<style>\n.profile-container {\n display: flex;\n flex-direction: row;\n flex-wrap: wrap;\n"
+        " justify-content: center;\n align-items: center;\n gap: 25px 10px;\n max-width: 700px;\n"
+        " margin-left: auto;\n margin-right: auto;\n margin-top: 20px;\n margin-bottom: 20px;\n}\n"
+        ".profile {\n text-align: center;\n width: 210px;\n}\n\n"
+        "ul {\n list-style-type: none;\n padding: 0\n}\n\n"
+        "li {\n text-align: center;\n}\n\n"
+        "@media print, screen and (max-width: 1100px) {\n .profile-container {\n  max-width: 450px\n }\n"
+        " .profile{\n  width: 47%;\n }\n\n"
+        "@media print, screen and (max-width: 960px) {\n .profile-container {\n  max-width: 700px\n }\n"
+        " .profile{\n  width: 31%;\n }\n\n"
+        "@media print, screen and (max-width: 720px) {\n .profile-container {\n  max-width: 450px\n }\n"
+        " .profile{\n  width: 47%;\n }\n\n"
+        "</style>\n</head>\n\n"
+    )
 
     n = 0
     subtitle = ""
@@ -38,21 +41,15 @@
                 for j in range(len(peeps)):
                     if j < len(peeps):
                         ext = "png"
-                        if not os.path.exists(
-                            f"assets/img/{peepcodes[j]}.png"
-                        ):
-                            if not os.path.exists(
-                                f"assets/img/{peepcodes[j]}.jpg"
-                            ):
+                        if not os.path.exists(f"assets/img/{peepcodes[j]}.png"):
+                            if not os.path.exists(f"assets/img/{peepcodes[j]}.jpg"):
                                 raise FileNotFoundError(
                                     f"File assets/img/{peepcodes[j]}.png does not exist."
                                 )
 
                             else:
                                 ext = "jpg"
-                        if not os.path.exists(
-                            f"./members/{peepcodes[j]}.md"
-                        ):
+                        if not os.path.exists(f"./members/{peepcodes[j]}.md"):
                             raise FileNotFoundError(
                                 f"./members/{peepcodes[j]}.md does not exist."
                             )
@@ -64,9 +61,7 @@
             subtitle = line
             peeps = []
             peepcodes = []
-        elif line in [
-            "end\n"
-        ]:
+        elif line in ["end\n"]:
             if n > 0:
                 s = f'\n\n<h2 style="text-align: center;"> {subtitle.title()}</h2>\n\n'
                 skip = n
@@ -75,7 +70,7 @@
                 images = ""
                 for j in range(len(peeps)):
                     if j < len(peeps):
-                        images += f'\t<li>{peeps[j]}</li>\n'
+                        images += f"\t<li>{peeps[j]}</li>\n"
                 images += "</ul>\n</div>\n"
                 outf.write(images)
                 outf.write("\n\n------\n")
@@ -84,7 +79,15 @@
             peeps = []
             peepcodes = []
         elif line != "\n":
-            line = line.strip("\n").strip(" - ")
-            peeps.append(line)
-            peepcodes.append(line.lower().replace(" ", "_"))
-            n += 1
+            line = line.strip('\n')
+            while line[0] in ['-',' ']:
+                line = line[1:]
+            if ' - ' in line:
+                line = line[:line.index(' - ')]
+            while line[-1] in ['-',' ']:
+                line = line[:-1]
+
+            if len(line) > 0:
+                peeps.append(line)
+                peepcodes.append(line.lower().replace(" ", "_"))
+                n += 1
diff --git a/members.txt b/members.txt
index c290013c..04b168ee 100644
--- a/members.txt
+++ b/members.txt
@@ -1,23 +1,23 @@
 principal investigator
-Rose (Rosy) Cersonsky
+Rose (Rosy) Cersonsky - rosecers
 
 postdoctoral researchers
 
 graduate researchers
- - Charles Carroll
- - Ethan Deutsch
- - Christian Jorgensen
- - Hwigwang Lim
- - Arthur Lin 
+ - Charles Carroll - cbefan
+ - Ethan Deutsch - e-deutsch
+ - Christian Jorgensen - cajchristian
+ - Hwigwang Lim - hwigwanglim
+ - Arthur Lin - arthur-lin1027
 
 undergraduate researchers
- - Zachary Amsterdam
- - Simon Hjaltason
- - Natalie Hooven
- - Lucas Ortengren
- - Matthew Reuteman
- - Rhushil Vasavada
- - Caleb Youngwerth
+ - Zachary Amsterdam - zamsterdam
+ - Simon Hjaltason - simon-hjaltason
+ - Natalie Hooven - nat-hooven
+ - Lucas Ortengren - ortengren
+ - Matthew Reuteman - Matthew-Reuteman
+ - Rhushil Vasavada - rvasav26 
+ - Caleb Youngwerth - cjyoungwerth
 
 visitors and collaborators
  - Lisa Je