She is in the 1881 census on FamilySearch.org:
Household:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
John WAID Head W Male 45 Isle of Man, England Sawyer Foxdale Mines
Robina WAID Daur U Female 19 Isle of Man, England
Ann Jane SHIMMIN Daur M Female 23 Isle of Man, England
Christain WAID Daur Female 15 Isle of Man, England
Maria WAID Daur Female 10 Isle of Man, England
Sage SHIMMIN Grand Daur Female 1 Isle of Man
Source Information:
Dwelling No 3 House Foxdale Road
Census Place Malew, Isle of Man, Isle of Man
Family History Library Film 1342347
Public Records Office Reference RG11
Piece / Folio 5607 / 123
Page Number 21

Birth cert: SHIMMIN, Sage Euphemia, 17 Mar 1880, Mal 25, SHIMMIN, Philip Henry, WADE, Ann Jane.
www.iomfhs.im/lawsons/births/shimmin.html

The 1911 census has:
Last names, First names, Se x, Birth year, Age in 1911, District / County:
GELL, SAGE EUPHEMIA, F, 1881, 30, Wirral Cheshire.
www.1911census.co.uk/search/results2.aspx?x=883387186

If you buy the transcript or scan (with luck) you will see who her husband was, and then be able to buy her marriage cert., looking from the date of her eldest child, if any.

Sue