Archibald Gann, b. 1817
father of Robert Gann, grandfather of Archibald Gann Sr., great-grandfather of
Archibald Jr., Clara, Robert and Alice Gann,...
His home in Alabama.
Archibald's son, Robert Gann, married Alice Kellogg:

Robert Monroe and Alice Kellogg Gann

Alice Kellogg Gann
Her parents, Moses Payson Kellogg and Harriet Robie Baker established Temple
College, which granted the
first masters degree to women in the US.

Moses and Harriet

Moses and Harriet, a bit older.