Hi Newfster,
you have touched on something there that I couldn't understand. The older boys as you rightly say appear in the entries for Downham Market Workhouse, but the whole family appear in the Boston Union entries. John, Edward and Jemima appear on one page and Frances and George Walter, who at the time is only 3 months old, appear on another.
In my research, I have come across it before where there has been a double entry for the same person at different addresses indeed my grandfather appears in the 1901 census as being at home and also at the home of his mother in law.
Even though this can be irritating at times, it's what makes genealogy so interesting.
Thanks again,
BILL H