Mary (Seymour) Gunston was born in Hertfordshire, England.
Mary Ann Seymour was born about 1854 (based on stated age at emigration) in England, the daughter of Thomas Seymour and .
Mary Ann married William Gunston in the June quarter of 1880, in Newmarket, Cambridgeshire, England.
Mary and William were in Cambridgeshire for the 1881 census (as were William's parents, Elijah and Ann (still there in 1891).
Mary (Seymour) Gunston migrated from Cambridgeshire, England to Queensland, Australia.
Mary and William had two children over the next few years, sons Ambrose William, and Harry.
In February of 1888 the family packed up and took an assisted passage to Queensland, Australia, arriving in Maryborough on the 4th April per the SS Merkara. William is listed as aged 33 years, Mary as 32 years, Ambrose as 6 years, and Harry (written as Henry) as 2 years.
Once in Queensland several more children made their appearances:
Ann Maria (1888)
Beatrice Mary (1890)
Mary Ann Gunston née Seymour passed away on the 7th June 1940, in Queensland, Australia.
: A notice regards her death and announcing her funeral was published in the Family Notices on page 6 of the Daily Mercury (Mackay, Qld), on Saturday 8th June 1940. She was to be buried in the Mackay Cemetery the following day (9th June). 
Cambridge 1881 Census
Name: William Gunston
Born In: 1855
Profession: General Labourer
Name: Mary A Gunston
Born In: 1854
Name: Elijah Gunston
Born In: 1826
Name: Anna M Gunston
Born In: 1828
Census Year: 1891
County: Cambridgeshire (CAM)
Civil Parish: Isleham
Ecclesiastical Parish: Isleham
Enumeration District: 3
House or Street Name: The Pit
Surname Forenames Relationship Marital Status Sex Age Occupation Birth County Birth Place Disability Notes
GUNSTON Elijah Head M M 65 Carpenter(Em'ee) CAM Isleham