He is married to Ann Dunsire.
They got married on August 8, 1830 at Wemyss, Fife, Scotland .Source 2
1841 Scottish Census - Peter Dunsire - Household
Book ED2, page 12 (459/2/11) Scotlands People
459 Wemyss West Coaltown, from Census header
Name Age Sex Occupation BIC
Peter Dunsire 35 M Coal Miner y
Peter Burtt 36 M Coal Miner y
Ann Burtt 36 F y
Agnes Nicol 81 F y
(From Dunsire Families of Fife - Andrew Dunsire)
Ancestry 1841 does not have Peter Dunsire in the 1841 census
Record for Peter Burt and Ann Dunsire/ Ancestry.com
Name: Peter Burt
Gender: Male
Marriage Date: 08 Aug 1830
Marriage Place: Wemyss, Fife, Scotland
Spouse: Ann Dunsyre
FHL Film Number: 1040184