The 4th, belonging to my paternal grandfather William Henry Smith, required me to use his death certificate as the way to document his death (and thereby obtain his SS-5). Here is his SS-5:
Notes based upon other knowledge: His father's name was Charles Henry Smith, his mother's name was Mary Ann Bannon. (The Bannon surname was sometimes spelled "Bonnon".)
Next up is the SS-5 for my paternal grandmother, the most interesting (in my opinion) of all of the SS-5s:
Notes: In the early 70s (on a visit to my brother, who was living near DC at the time), I learned that Grandmother Smith had converted from Judaism to Catholicism in order to marry Grandfather Smith. So she had taken the name "Elizabeth". I had known her only as "Elizabeth C. Smith", without any idea as to what the "C" stood for, although if I had been asked to guess, I would have assumed another typical Catholic name, such as "Catherine". Imagine my surprise to read "Conceptia". Her birth name was "Rachel", but she was frequently called "Rae". Also surprisingly, she was not born in the NY/Northern NJ area, but instead, in England, Arkansas. And she fails to give her mother's maiden name, which I learned from other sources was "Grodowitz".
Now, my maternal grandparents, beginning with my maternal grandfather:
Note: His mother appears as "Jane" in most records, and with the surname spelled "Bodie".
Finally, to complete the set, the SS-5 for my maternal grandmother:
Notes: In nearly all records, she appears as "Lizzie", but she appears as "Elizabeth" in the 1930 census.