[3] Jacob Barker was a prosperous planter, merchant and politician who was in his late sixties at the time of Annie's birth.

Barker, a native of Maine, worked closely with Rhode Island merchant Rowland G. Hazard who, using Louisiana state laws, was able to free over one hundred Northern-born African-Americans who had been enslaved.

[4] It is possible that Annie arrived in Nantucket, Massachusetts through the ministrations of Barker, Hazard, and African-American minister, activist, orator and Underground Railroad conductor Charles Bennett Ray.

'To one unacquainted she would, unquestionably, have passed for a white girl, yet she was of African parentage, was true to and dwelt with colored people.

Heeding the call of Nantucket native and Quaker activist Anna Gardner for teachers to go South to educate the freedmen, in June 1864, Annie left Nantucket for New Orleans, where she taught school for four years under the auspices of the Freedmen's Bureau, before moving to San Antonio, Texas[8] In 1870, Annie returned to New Orleans, where she took on the position of principal of the Coliseum School.

[10] By 1877 Annie was the "principal of one of the McDonogh Schools that had been established from a bequest by a wealthy slave owner who left his estate for the support of free schools for children regardless of color"[11] when she met Andrew Fitch Mangin, a thirty-four-year-old African-American native of Monroe, New York who was employed at various times as a coachman and a teamster.

"The curved piece at the upper end of the handle is what Mrs. Mangin calls the cutter or trimmer for pie crust.

"[18] The pastry fork improved the lives of many people, and eventually led to more electric mixing inventions that are used to this day.

If the dough does not fully incorporate during the kneading process, then it will not rise, resulting in a dense, and in most cases, underbaked consistency.

[1] Anna Mangin's pastry fork was displayed at the New York Afro-American Exhibit at the World's Columbian Exposition in 1893.