Robert Newbie

Little is known about Bob Newbie Sr. (Birth name: Robert Newbie), as he is deceased long before the start of The Sims 2.

Life leading up to The Sims 2
He was married to Mags Newbie, as we see on his family tree. Together he and Mags had a son, Bob Newbie Jr., who is intoduced in the tutorial of The Sims. Bob Sr. is the grandfather of Bob Jr.'s daughter, Brandi, who was the product of the marriage between Bob Jr. and his wife, Betty Newbie. Bob Sr. is also the great-grandfather of Brandi's children; Dustin Broke, Beau Broke, and an unborn son.

Life in Sims 3
''Robert and Mags Newbie moved to Riverview along with their teenage son, Bob. Bob had a hard time adjusting to the move, but he’s found a new best friend to occupy his time.  

Reference
Blog SimGuruRain