Hi Ron,
Welcome from me too

1891 and 1901 census details for Hannah Isabel, was her Dad called Thomas too? and could that be a relative of your Dad living with them in 1891??:
1891 RG12/2958 fol. 17 p.27
33 Candis Street, Kirkdale, Liverpool
HAYGARTH
Thomas D head mar 29 Postman Westmorland
Agnes wife mar 23 Liverpool
Hannah I dau 3 "
William son 1 "
Thomas T ELLIS boarder s 25 Postman "
Thomas E JONES " s 25 " "
1901 RG13/3475 Folio 57 Page 7
50 Melbourne Street, Kirkdale, Liverpool
HAYGARTH
Thomas Daniel head m 39 Postman Barbon, Westmoreland
Agnes wife m 33
Hannah Isabel dau 13 School Girl
William son 11
Thomas " 9
John " 7
Mathew " 3
Hector Baden " under 10 months
all except Thomas born Liverpool
Kind regards,
Barbara