The SF writer Philip Jose Farmer wrote "biographies" of Tarzan and Doc Savage where he created family trees tieing together many literary characters. Among them a
family history and family trees for the amazing Lane family.
.
Those can't be used directly because they are for a Lois Lane born in the 1920s to match the age when Superman was first written.
However names often get handed down in families and if Margo was the great aunt to the Lois & Clark Lois that still makes for interesting relatives.
So any thoughts to expand on the history and stories to go with that?