Here we go
ths is most likely your John and catherine in 1851 -although address is difficult to read -it looks like it is the same address as in 1861!
1851
Ganlwyd maesteg Glamorgan
Jim (or Tim?) Connor Head M 47 Labourer Ironworks Ireland
Mary wife 35 Ireland
Patrick Cathon Lod U 21 lab iron Works Ireland
James Donovan Lod U 21 Lab Iron Works Bridgend Glamorgan
Mary Connor daughter U8 bridgend Glamorgan
Margaret Connor daughter 8 Bridgend Glamorgan
Catherine Conr daghter 5 Bridgend Glam
Daniel Conor 6mth Cwmdu Glam
JOHN DONOVAN Lod M 30 Lab Iron works Ireland
CATHERINE DONOVAN Lod M 34 ireland
MICHAEL DONOVAN 9 Lod Ireland
HO107 2461 69 46
(I know Michael (aka Miles) is shown as b ireland -but maybe that is just a mistake by the enumerator or whoever gave the enumerator the information.
?
Then (this is pretty straight forward)
1871
5 maesteg Row
Measteg glamorgan
John Donovan Head M 50 Lab Iron works Ireland
Catherine wife 52 Ireland
Mary daughter U 19 maesteg glamorgan
Patsy Leonard (male) Boarder U 19 labourer Ironworks Maesteg glam
Frederick Wilks Boarder u 27 Lab iron Works Gloucester
RG10 541395 16
then have you seen the 1881 census ?
RG10 5413 95 16
This is how I read the mage
4 Company Row Maesteg Glam
MICHAEL DONOVAN Head M 36 Labourer Newport Mon
Catherine wife M 26 Aberavon Glam
Mary C daughter 8 maesteg glam
Ann daughter 7 measteg glam
John son 4 maesteg Glam
Ellen daughter 2 maesteg Glam
Michael son 10 mths mesteg Glam
John Donovan Boarder W or M? 46 lab Aberavon Glam
Mary Donovan Boarder M 46 Nottingham
John Donnolly Boarder U 49 Lab merthyr Glam
John Leonard Boarder U 56 Lab merthyr
Living next door
JOHN DONOVAN head M 60 Lab ironworks Cork ireland
CATHERINE wife 58 Cork ireland
Mary C Donovan Granddaugter 7 Maesteg Glam
Daniel Coleman son in law M 29 lab in Iron works Cork Ireland
MARY COLEMAN daughter M 29 Maesteg Glam
Margaret Coleman Granddaughter 2 Maesteg glam
Michael Coleman Grandson 6 mths Maesteg Glam
RG11 5327 60 50
What do you think???
Suz