Aged 7 in 1891

Gives he age at 21 in 1910 when she marries!
groom's name:    Henry Macmillan
groom's birth date:    1888
groom's birthplace:    Renfrewshire, Scot.
groom's age:    22
bride's name:    Janet Gray Brewster
bride's birth date:    1889
bride's birthplace:    Hamilton, Scotland
bride's age:    21
marriage date:    03 Jun 1910
marriage place:    Sydney Mines, Cape Breton, Nova Scotia
groom's father's name:    Henry
groom's mother's name:    Sara G.
bride's father's name:    Thomas
bride's mother's name:    Christina
indexing project (batch) number:     M7240-8
system origin:    Canada-VR
source film number:    1298865

Larry Miller's tree at:
http://trees.ancestry.com/tree/23879368/family?cfpid=1439928499
gives her death as