My DF was married twice - he had 2 daughters from his first marriage and I was born in his second marriage. Second marriage ended in the 70's - his daughters were maybe aged around 10 born mid/late 60's. DF moved to a different city and afaik they lost touch/possibly some family arguments. My DF and DM went on to be married for 42 years until they both sadly passed away this year, in their 70's.
I guess my question is, there are no other family members I know of on my DF's side, so no one to notify of his passing. But should I maybe add it to ancestry on the off chance that someone looks for him in the future? I feel a bit like I should put it out there for his DD's/their future family to find. Or would you not be interested?