"A good German shepherd is an all-purpose dog," said co-breeder and co-owner Sheree Moses Combs of Wardensville, W.Va. Some of her pups have become service dogs for wounded veterans, she said.

“A good German shepherd is an all-purpose dog,” said Mercedes’ co-breeder and co-owner Sheree Moses Combs of Wardensville, West Virginia. Some of her pups have become service dogs for ...