i see by the 1851 cencus that richard is from sufflok not hertfordshire.
living in sawbridgeworth
cock street
richard tricker 34yrs bootmaker born tudenham suffolk
eliza 34yrs wife born
mary ann 9yrs daughter
arthur 8yrs son
rueben 6yrs son
william 5yrs son
walter 1yr son
SOURCE INFO-H0107-1706
FOLIO-35
PAGE-33
with this in mind i found this baptism in suffolk-
richard tricker bapt 26th march 1815 parents william tricker and sarah.(could this be your man? do you know his mothers name?)
regards
alli