Complex sentence: By the late 1920s Potter and her Hill Top farm manager Tom Storey had made a name for their prize-winning Herdwick flock, for which she won many prizes at the local agricultural shows, where she was also often asked to serve as a judge.
Split into simpler sentences: By the late 1920s Potter and her Hill Top farm manager Tom Storey had made a name for their prize-winning Herdwick flock. As a Herdwick breeder she won many prizes at the local agricultural shows and was frequently asked to serve as a judge.