India, July 8 -- Following a stampeding flash flood during the Fourth of July weekend, three members of a Bay Area family, including the brother of a former San Francisco Giants pitcher, are still unaccounted for in Texas.

Mark Walker, his wife Sara, and their 14-year-old son Johnny disappeared when the heavy rains flooded the neighbourhood around their second home in Hunt, Texas. The family was visiting the place when their 16-year-old girl, Ellie, was attending a local summer camp, which was fortunately spared.

Kathy Walker, Mark's mother, told the San Francisco Chronicle that the family's house was washed away in the flooding. The Walkers' daughter Ellie, who was at camp during the storm, is now being cared for by her uncle Tyler Wal...