Joshua Manwaring's second wife was Margaret Fort (1853-1940), who was a sister of former Governor John Franklin Fort. Joshua was a Lapeer County, Michigan, resident who had roots in New Jersey. Margaret moved to Lapeer from New Jersey after her marriage to Mr. Manwaring (12 Nov 1895). They were living in Lapeer in 1900. Margaret was widowed and living back in New Jersey in 1930.
Published on October 2, 1907, in the New Jersey Mirror:
...When Judge Fort arrived in Mount Holly on Thursday the first thing he did was to go straight to see his father, Andrew Fort...with his daughter, Mrs.Walter [Mary] Oliphant. The elder Fort is 86 years old...and expects to live to see him [his son] elected Governor of New Jersey. ...he [soon to be Governor Fort] found a number of ladies waiting to greet him, among them his aunts, Mrs. Arthur Thomas and Mrs. Charles B. Parsons; his sister, Mrs. Jacob C. [Hannah] Hendrickson, and Mrs. Atkinson, Mrs. R. C. Barrington, and the Misses Hendrickson.
In 1911 Margaret Fort Manwaring's father, Andrew Fort, died; her mother, Hannah, died in 1870, at age 40.
Margaret Fort Manwaring's brother, former Governor John Franklin Fort, died in 1920.
Margaret's nephew, Franklin W. Fort, a close friend of President Hoover, passed away at the Mayo Hospital in 1937.
Name: Manwaring, Margaret B.
Death Date: Jan 15, 1940
Place of Death: A convalescent home in Mount Holly
Publication: Mount Holly Herald
Jan 19, 1940
Notes: Age 86, s/o thr late John Franklin Fort & niece of the late George F. Fort, both former governors of NJ. Services were held at the home of her niece, Mrs. Richard B. Eckman, Mount Holly. Also survived by a sister. [see also ntc. sec.1, p.3:1]