diff --git a/aastex/_aastex.py b/aastex/_aastex.py
index 9dd9add..7eb7379 100644
--- a/aastex/_aastex.py
+++ b/aastex/_aastex.py
@@ -80,6 +80,16 @@ class Author(pylatex.base_classes.LatexObject):
     organization where the work was done is usually given first.
     """
 
+    altaffiliation: None | str = None
+    """
+    A note about the author which is not an organization, rendered as a
+    footnote on their name.
+
+    This is where AASTeX puts anything which needs saying about an author
+    besides where they work, such as ``"Hubble Fellow"``, or ``"Deceased"``
+    for an author who died before the article was published.
+    """
+
     email: None | str = None
     """
     The email address of the author.
@@ -113,6 +123,18 @@ def dumps(self) -> str:
             options=NoEscape(self.orcid) if self.orcid is not None else None,
         ).dumps()
 
+        # The footnote symbol attaches to whatever precedes it, so this has to
+        # follow `\author` immediately.
+        altaffiliation = ""
+        if self.altaffiliation is not None:
+            altaffiliation = (
+                pylatex.Command(
+                    command="altaffiliation",
+                    arguments=self.altaffiliation,
+                ).dumps()
+                + "\n"
+            )
+
         # AASTeX v7 requires an `\email` command for every author,
         # so emit an empty one if no email address was given.
         email = pylatex.Command(
@@ -123,7 +145,7 @@ def dumps(self) -> str:
 
         affiliation = "\n".join(a.dumps() for a in self.affiliations)
 
-        result += f"{author}\n{email}\n{affiliation}"
+        result += f"{author}\n{altaffiliation}{email}\n{affiliation}"
 
         return result
 
diff --git a/aastex/_tests/test_aastex.py b/aastex/_tests/test_aastex.py
index f1ba785..038658e 100644
--- a/aastex/_tests/test_aastex.py
+++ b/aastex/_tests/test_aastex.py
@@ -65,6 +65,11 @@ def test_dumps(self, a: aastex.Affiliation):
                 aastex.Affiliation("Another Fancy University"),
             ],
         ),
+        aastex.Author(
+            name="John Roe",
+            affiliation=aastex.Affiliation("Fancy University"),
+            altaffiliation="Deceased",
+        ),
     ],
 )
 class TestAuthor:
@@ -88,6 +93,20 @@ def test_affiliations(self, a: aastex.Author):
         for affiliation in result:
             assert affiliation.name in dumps
 
+    def test_altaffiliation(self, a: aastex.Author):
+        result = a.altaffiliation
+        dumps = a.dumps()
+        if result is not None:
+            assert isinstance(result, str)
+
+            # the footnote symbol attaches to the preceding text, so this has
+            # to follow `\author` and nothing else
+            author = dumps.index(r"\author")
+            assert dumps.index(r"\altaffiliation") > author
+            assert dumps.index(result, author) < dumps.index(r"\email")
+        else:
+            assert r"\altaffiliation" not in dumps
+
     def test_orcid(self, a: aastex.Author):
         result = a.orcid
         if result is not None:
@@ -675,7 +694,12 @@ def _submittable_document() -> aastex.Document:
         aastex.Author(
             name="Jane Doe",
             affiliation=aastex.Affiliation("Fancy University"),
-        )
+        ),
+        aastex.Author(
+            name="John Roe",
+            affiliation=aastex.Affiliation("Fancy University"),
+            altaffiliation="Deceased",
+        ),
     ]
     section = aastex.Section("A section")
     section.append("Some text.")