Yes, I believe this is the Sarah Lumb I seek. The husband is probably Jno. or John. I have not found them in any other census. The history of this family is very murky, although it is known there were at least two other children: Cynthia who married a Chung Yick in Providence, RI ca 1900, and Charles Joseph. A newspaper article from Providence ca Feb. 1900 has Cynthia's son from her first marriage killed in a fire in the home. Sarah Lumb was identified as being there when the fire began. However, none of these people is found in any 1900 census. A family journal has Cynthia (and probably her family) going to China later in 1900, and they may have remained there, as there is no further information on her or any in her family.
Charles Joseph Lumb is my husband's grandfather. He married Catherine McGarry ca 1897, and is probably the one living child referred to by Sarah in the 1910 census. (No idea what happened to son George). Sarah's husband John is believed to have gone to Cuba ca 1900, and may have remained there, as he is not found in any later census. Some in the family believe he may have had Chinese/Cuban background; Cynthia indicated her father was Chinese on her marriage application.
My present main goal is to find Sarah's death date and hopefully obtain a death certificate. Thanks for all help.