This is definitely strange. I'm not getting any hits on the earlier children at all except for Daniel, son of Thomas and Ann and William, son of Thomas and Mary. I don't know why only William was born in Littleport. His sister, Edith, marries and lives in Littleport and raises William's daughter, Elizabeth. Sorry to repeat, I've been focused on a million other lines and just came back to this one following some great Ward family discoveries in Fenstanton!
Thanks again! :-)