Margaret A. Thomas
It appears that Margeret is a widowed daughter of David George and Martha D. Thomas. The Thomas Family emigrated from England in 1857. They sailed on the George Washington, arriving in Boston on April 20. The family appears in the 1860 census living in Iowa City. They came to Utah in 1868. David appears as the head of the family in the memorandom book. His daughters, (with married names) are also included in his family group. A Mimi Irwin (6) also appears. They all appear living together in Salt Lake City in the 1870 census.
Margaret appears in the memorandom book with the surname of "Blizzard". However, she has the surname of Thomas in the 1870 census.