Sibley family crest

Walter Wirt & Mabel Alice Waggoner Sibley 
(Bob's paternal grandparents)

Maternal grandfather, great grandfather & three other guys

Letter from Vivian Sibley to Mildred Sibley
From Bob's mother to Robert A. Sibley's sister upon the birth of her first child, David.
Envelope for letter

Vina Sibley's obituary
Vina was Robert A. Sibley's third wife. They were married at the time of his passing.