[1] Around 1845, Gallup returned to Strongsville and worked at the store of his uncle Alanson Pomeroy.

[1] Around 1848, Gallup returned to partner with his uncle on a general store in Strongsville.

In 1870, he bought his uncle's stock and partnered with his son John on a mercantile business.

[1] In 1890, Gallup and his family moved to Mount Vernon, Illinois, and engaged in farming until his death.

[1] They had 10 children, Frank C., John, Mary E., Arthur L., Charles H., Alice, Mabel, Ellen, Lucy and a child that died in infancy.