If these are the death dates of Herbert and Harriett
Herbert Farnsworth born abt 1888 died Mar 1960 quarter Wakefield Yorkshire West Riding
Harriett Farnsworth born abt 1889 died Sep 1943 quarter Wakefield Yorkshire West Riding
Then these are the birth registrations of the pair
Births Sep 1887
FARNSWORTH Herbert Wakefield 9c 45
Births Sep 1889
Hough Harriet Wakefield 9c 40
I cannot find Herbert on censuses before he marries and this may indicate that his morther married and he is down under her married name
I had more success with Harriet finding her in 1891 with parents Fanny and Samuel and in 1901 with mother Fanny, now a widow. Fanny marries Joseph Jeffreys in 1902
All the children seem to be born in the Wakefield Registration District. If you search on
www.freebmd.org.uk using the fathers surname Farnsworth and the mothers maiden name Hough between 1913 and 1935 you will find 11 births. This indicates the marriage was earlier than you thought.
If Herbert was a coalminer then this is him in 1911 with wife and child (note surname is spelt wrong)
https://familysearch.org/pal:/MM9.1.1/XWV2-QD6https://familysearch.org/pal:/MM9.1.1/XWV2-QDFhttps://familysearch.org/pal:/MM9.1.1/XWV2-QDXSo this would indicate they were married before 1911.
The most likely marriage in Wakefield is
Marriages Jun 1909
FARNDSWORTH Herbert Wakefield 9c 95
HOUGH Harriet Wakefield 9c 95
Taking into account the misspelling of the surname brings two more children in addition to the 11 referred to above
Births Mar 1910
FARNDSWORTH Samuel H Wakefield 9c 27
Births Mar 1912
Farndsworth Joseph Hough Wakefield 9c 45
EDIT: Just noticed the original request was from 2006, still the info may be of use to someone