I noticed a post on Rootdig.com that Michael John Neill had noted his ancestors that were listed in the SSDI. I thought this was an interesting exercise and certainly not one I had considered before, so here goes nothing.....
1. Fred Joseph Harmon (1 Jun 1921-25 Apr 1993) - my grandfather
2. Kate Harmon (5 Nov 1889-21 Sept 1974) - my great-grandmother and mother of #1, maiden name was Arthur
3. Helmer Hiby (21 Jan 1895- Jun 1982) - my great-grandfather
4. Bernice Hiby (27 Mar 1903 - 28 Mar 1982) - my great-grandmother, maiden name was Hanson
5. Charles McNeill (18 Feb 1886-12 May 1970) - my great-grandfather
6. Della McNeill (15 Mar 1893-1 Mar 1979) - my great-grandmother, maiden name was Grindstaff
7. Frona Scott (13 Jun 1890-29 Jun 1971) - my great-grandmother, maiden name was Greathouse
It should be noted that both my grandmothers are still living as well as my parents.
The other unusual thing is that my grandfather, Lee McNeill, should be listed in the SSDI. However, the reason he may not be listed is that he died at age 59 before he started receiving benefits so my grandmother may not have needed to report his death to the Social Security Administration. And she was admittedly rather shell-shocked. Her mother Frona died at the end of June and just over two weeks later Lee died suddenly from a heart attack. Frona had lived with my grandparents since her own husband, Bert Scott, had died in 1950 on the day my uncle was born.
This also pointed out a couple of flaws in my recordkeeping. I need to note the dates of my Hiby grandparents' passing. I remember both their funerals fairly well, particularly for my great-grandma Bernice. She either died on the 27th or 28th of March and the funeral was on the 31st, which was their wedding anniversary as well as my birthday. And my great-grandpa Helmer died just three short months later in June. However, that date escapes me completely. I will need to follow up on that.