Melissa Talmadge Cox, daughter of Joseph Talmadge Keaton and granddaughter of Buster Keaton, remembers her “Grandpa Buster” (via Film Radar): 

“He was a train collector and had a wonderful collection of miniature trains.  The train would start in the garage and went around the edge of the pool.  He would send out watermelon slices, hot dogs, and cokes that would be sitting on the flat cars.  The trains would come out on a raised platform track that would come along the edge of the pool and around the table.  He would work the trains from within the garage.  He lived in a ranch house in San Fernando Valley.  I used to go in his hen house and collect the eggs.  His place was surrounded by corn fields.  It was still very rural in the valley when he lived there.  He was a superb card player and taught me how to play solitaire and lots of other card games.”