Hi Amelia
1851 Census Corfe Mullen (HO107/1854 fol.619 is the correct reference) -
Uptown
Mary BURDEN M 47 Hant. Southampt.
Maryan BURDEN Dau U 23 Seamstress Dorset Canford
Cosmas BURDEN Son U 10 Scholar Dorset Canford
Damon BURDEN Son U ?10/8 Scholar Dorset Canford
Mary BURDEN Dau U 6 Scholar Dorset Canford
John BURDEN Visitor Wid U 87 Annuitant Dorset Woolbridge
The saints Cosmas & Damian (the correct spelling) were twins and are the patron saints of pharmacists and physicians. The ages of the two Burden children are difficult to read, and it is possible that they were twins too and perhap their correct age is 10 - if you can find their baptisms you could check this. The saints had brothers called Anthimius, Leontius and Euprepius, so if the Burdens had more sons .....

Shoko