Elizabeth marriage:
Marriages Sep 1854 Houghton le Spring 10a 341
Elizabeth HANN to Joseph ALLEN
Births:
ALLEN, JAMES HANN mmn HANN
GRO Reference: 1855 S Quarter in HOUGHTON LE SPRING Volume 10A Page 300
ALLEN, DOROTHY JANE mmn HANN
GRO Reference: 1858 J Quarter in HOUGHTON LE SPRING Volume 10A Page 336
On the 1871 Census. Also a son Stephen and brother John a lodger:
https://www.familysearch.org/ark:/61903/1:1:VBZT-WPFJamjar
Added: John HANN’s death:
England and Wales Death Registration Index 1837-2007
Name: John Hann
Event Type: Death
Registration Quarter: Jul-Aug-Sep
Registration Year: 1882
Registration District: Houghton Le Spring
County: Durham
Event Place: Houghton Le Spring, Durham, England
Age (available after 1866): 65
Birth Year (Estimated): 1817
Volume: 10A
Page: 249
Line Number: 35