1901 censusReferrah(?) Downs, Perranzabuloe, Truro
Sampson Roberts Head 49 Farmer b Newlyn East Cornwall
Elizabeth J wife 39 b Perranzabuloe
James H son 20 Navvy b Newlyn East
Herbert son 16 Trammer in explosive works(powder) b Perrazabuloe
Annie M son 13 b St Columb Minor
Lottie dau 9 b St Columb Minor
Ernest son 5 b St Columb Minor
Sampson J son 3 b St Columb Minor
Phillis dau 1 b Perranzabiluoe
RG13/ 2219 Folio 96 Page 15
There is also a Sampson W J Roberts with parents Edward and Jane but I thought Phillis clinched it.
You should still really send for the marriage cert to verify his dad

Tricia