Patty, This is probably way off but Was Frank a locomotive fireman or foreman? Do you think he was deceased or his wife, or were they just possibly separated from Albert in 1900, but living? Do you know when Frank was born could he be about 29 (b. 1871) in 1900 making him about 22 when Albert was born? I found one Frank Burton fitting this description (race: white?) boarding in Texas in 1900 and it appeared he was in a neighborhood with people who were "locomotive workers" from many states and this Frank was reported to be born in Iowa, however of all the information on the whole page reported to the enumerator (who was very thorough in his recording, filling in every column for all person he recorded including 0 for no children, S for singles etc) only Franks information had missing entries meaning maybe he didn't report it himself, but the boarding home owner or someone else! Missing was his, birth month, marital status, years married, number of children, ability to read, write etc. Any siblings for Frank to your knowledge? Curious and hope to help! Judith A Young