My name is Marilyn Bryan (nee Dumbleton) I have just read your post message even if it is a few years old. My gg grand father was Samuel Dumbleton he marrried about three times first to Mary second Rebecca and then my gg grand mother Keisa Platt they had a daughter Sarah born about 1843 Darlaston STS England. I think this might be your Sarah, she had 5 brothers, a half brother, and 2 step brothers, and a stepsister. I have a fair bit of infomation but at the moment it is a bit off a mess as I am trying to go through it to put on this. If this is any help to you please contact me.