Mary was born in 1897 in Oswestry. Her father, an ironmonger, was called Arthur Eustace Lacon (b. 1871), and her mother was called Lily (b. 1872). Mary had three younger siblings: Nora Lillian (b. 1899), Helen Minnie (b. 1901) and William Norman (b. 1906). By 1911 the family is recorded as living at Ferrer’s road in Oswestry.
On 2/5/1917 Mary started working as a Clerk with her sister Nora Lilian at Park Hall Military Hospital. She was a member of the Shropshire 38 VAD and worked full time for 25s 4d. This sum increased to 30s 2d by the end of her service in 1918.
Following the war Mary moved down to Hitchin with her husband Harold Stanley Robinson. The two had married in 1921.
Mary died in 1948.