William Brown
Certified copy of the death entry doesn't give enough information to clarify if this William Brown is the William Brown born Luton c1797 and married to Elizabeth Collins. While the age of the person corresponds (roughly), the occupation as master grocer doesn't, the location of the death, Holywell Hill while close to Dagnall Lane is not the same and the informant is not his wife Elizabeth Brown. However the only evidence that Elizabeth Brown was alive in 1870/1 is a census record for an Elizabeth Brown born in Hemel Hempstead c1787, which might not be the same person as was married to William Brown.
Key information from the Death entry
When and where died; 15 February 1870, Holywell Hill St Albans
Age; 73 years
Occupation; Grocer Master
Cause of death; Bronchitis 6 weeks
Signature, description and residence of informant; The mark of Lydia Edwards present at the death. Sopwell Lane St Albans
Richard Brown
The certified copy of the death entry for this Richard Brown does provide enough information to indicate that it is not Richard Brown married to Harriet Gooch. While the age is correct, the occupation is not and the daughters name is not.
Key information from the Death entry
When and where died; 21 July 1885, Lattimore Road St Peters St Albans
Age; 54 years
Occupation; Veterinary Surgeon
Cause of death; Spasms of the heart
Signature, Sarah Gertrude Brown, daughter, present at death. Lattimore Rd St Peters St Albans