Though I am familiar with the names you have given, I haven't yet found a link between them and my Pickstocks. I'm sure that if we go back far enough, there will be a connection. I'm currently stuck with hauler of flats John Pickstock born around 1828, father of ship carpenter John Pickstock born 1849. I don't yet know who his father was and therefore have not managed to tie him in with any other local Pickstocks... possibly in the Over Wharton or Davenham area. Thanks.