Hi
Here are Martha and Thomas in 1871, this also shows Marthas mother,so you were right her maiden name was Page.
Chas Edwd Leadbeater 2 Kings Norton, Worcestershire, England Son Kings Norton Worcestershire
Geo Leadbeater 3 months Kings Norton, Worcestershire, England Son Kings Norton Worcestershire
Martha Leadbeater 31 Leominster, Herefordshire, England Wife Kings Norton Worcestershire
Thomas Leadbeater 33 Birmingham, Warwickshire, England Head Kings Norton Worcestershire
Thomas Leadbeater 5 Kings Norton, Worcestershire, England Son Kings Norton Worcestershire
William Edwd Leadbeater 3 Kings Norton, Worcestershire, England Son Kings Norton Worcestershire
Mary Page 67 Alcester, Warwickshire, England Mother-in-law Kings Norton Worcestershire
Source information: RG10/3079
Registration district: Kings Norton
Sub-registration district: Kings Norton
ED, institution, or vessel: 13b
Folio: 61
Page: 7
Household schedule number: 30
address Mount Pleasant
Thomas is listed as a brace and bit maker
Mary Page is a widow.
and here they are in 1891
Leadbeater, C F 21 Birmingham Son Kings Norton Worcestershire
Leadbeater, L 15 Birmingham Daughter Kings Norton Worcestershire
Leadbeater, Martha 53 Leominster, Herefordshire Head Kings Norton Worcestershire
Leadbeater, Stanley 18 Birmingham Son Kings Norton Worcestershire
Leadbeater, W E 23 Birmingham Son Kings Norton Worcestershire
Leadbeater,A, 14, Birmingham, Son, Birmingham
Source information: RG12/2355
Registration district: Kings Norton
Sub registration district: Kings Norton
ED, institution, or vessel: 37
Folio: 42
Page: 26
address 1 CrossmontPlace
occupations
Son A age 14 errand boy
daughter L (presumably Alice Louise) warehouse girl
Stanley - screw maker
son C - mount burnisher
son W - engraver
and in 1901
Alfred Leadheater 24 Bham, Warwickshire, England Son Balsall Heath Worcestershire
Louie Leadheater 25 Bham, Warwickshire, England Daughter Balsall Heath Worcestershire
Martha Leadheater 63 Leominster, Herefordshire, England Head Balsall Heath Worcestershire
Stanley Leadheater 28 Bham, Warwickshire, England Son Balsall Heath Worcestershire
William Leadheater 33 Bham, Warwickshire, England Son Balsall Heath Worcestershire
Source information: RG13/2811
Registration district: Kings Norton
Sub-registration district: Kings Norton
ED, institution, or vessel: 63
Folio: 57
Page: 1
Household schedule number: 8
address 15 Colville Road
occupations
William general engraver
Stanley machine maker screw trade
Louise millinery machinist
Alfred brass worker
Hopethis helps
Nicky