Actually I did not know them...even tho my Dad married several times, and lived only 7 miles away...we did not see he and spouse(s) enough to know of them...until at a class reunion I got introduced to a “brother”...and my mother married childless men
Shameful - on the part of your father!
I am familiar with cases in which the father (post-divorce) married another woman with children of about the same age as his own children (from the first marriage), and began assuming the role of "father" to these new kids (taking them to Cub Scout meetings, etc.) - while his "previous" children languished.
Shameful!
Regards,