Clarissa Cordelia Moses Cannon was a member of the firstever general presidency of the Primary organization of The Church of Jesus Christ of Latterday Saints . She was the second counselor to general president Louie B. Felt from 1880 to 1895.
Clara Moses was born in Westfield, Massachusetts. She was a Mormon pioneer and in 1846 took the sixmonth journey on the ship Brooklyn from New York City to San Francisco via Cape Horn and the Sandwich Islands. Instead of traveling on to Utah Territory, she settled in San Francisco. In 1859, she married William H. Mason they had two children. William Mason died in 1868.
Source: Wikipedia