Oct. 2, 1876, Lorenzo F. Darling, b. June 29, 1836. He was a wholesale jeweler in Halifax, Nova Scotia, now retired from business. Res., s p.. Riverside, Cal. Mrs. Darling writes: "My Grandmother Foster was Mary Randall, the granddaughter of Mary Foster, of Boston, who was the wife of Col. Christopher Prince. They went to Annapolis, Nova Scotia, in 1770, and they took with them two slaves and splendid silver plate. Foster's wharf, in Boston, was a point associated with her family. Our immediate familv have few, if any, relics. My brother Miner and myself destroyed a portrait of Col. Christopher Prince when we were children and yet I remember it distinctly. It was on a heavy piece of white paper, about six inches by nine inches, yellowed with age. The figure sat on a chair smoking a long-stemmed pipe. He was dressed in a frock[coat with full skirts and lappets, knee breeches and low shoes with buckles. He had blue eyes and rosy cheeks. How many times I have regretted this destruction! I have heard my grandfather speak of the metal-seal commissions of the kmg, in the use they afforded him and his brothers as sinkers in their river trouting. I have, however, two pieces of worsted work, executed by Mary Foster (Mrs. Christopher Prince), my great-great-grandmother, of Boston."
(Source: Foster Genealogy Volume 1; Frederick Clifton Pierce)

Mary Foster Darling Biography
(Source: http://www.riversidehistoricalsociety.org/Documents/RHSJournalVol8.pdf)