I also have a Pickavance family in Warrington, England. My Jane Bradbury m. an Edward Pickavance. He was ab. 1839 in St. Helens. Kids were Edward 1867, Mary Ellen 1870, Elizabeth 1872, Eva 1878 and Gertrude 1880. I found evidence that Mary Ellen m. and went to Birkenhead and had 3 kids....Joseph, Jessie and William.