She was publicly active in these causes between 1912 and 1917. She was born on 10 December 1870 in Limerick, Ireland to Thomas Hinchey and Mary Maloney. She migrated to New York City in 1897 and worked in a laundry.
In February, 1914, Hinchey spoke at a meeting of the Equal Suffrage League, recounting her meeting (along with 35 other women suffragists) with President Woodrow Wilson to push for women"s suffrage.
By 1920 she was working as a domestic servant. She died in Manhattan, New York City on 29 February 1944.