More parent types needed, or at least "other" as a parent type
The will of one man names "my reputed son John". Although rare, it would be good to capture that relationship (potentially biological). Unfortunately, "reputed father" doesn't fit into the currently offered types (<none>, Adoptive, Biological, Foster, Guardianship, Step). (<none> must mean "legal" parent, with Biological used for the case of a biological parent that isn't a "legal" parent.)
In the 2000s, society seems to be generating new relationships such as "my mother's (female) partner" and more.
If nothing else, I would suggest adding "other" to the possible parent relationship types. The explanation box can be used to capture the detail.