He was private secretary to Governor David H. Goodell from 1889 to 1891. Moses then went into journalism, working as a reporter, news editor, and chief editor for the "Concord Evening Monitor" from 1892 to 1918. Moses was a member of the New Hampshire Forestry Commission from 1893 to 1907, and served as the commission's secretary. Moses was a delegate to the 1908 Republican National Convention.