These are the only Venn named on the 1851 with Richard as a first name.
VENN, Richard Head <1779> Washfield-Devon Heavitree
VENN, Richard Head <1790> Stoodleigh-Dev Heavitree
VENN, Richard Head <1793> Chumleigh-Dev Cheriton Fitzpaine
VENN, Richard Vist <1819> Alphington-Dev Alphington
VENN, Richard Son <1837> Kingsnympton-DEV Haccombe & Combeinteignhead
VENN, Richard Son <1845> Uffculme-DEV Uffculme
And these are the only Emmas
VENN, Emma Serv <1835> Heavitree-Devon Heavitree
VENN, Emma Daur <1843> Ottery St Mary-DEV Feniton
VENN, Emma Daur <1843> Heavitree-Devon Heavitree
Please let me know if you require anything further.
Debbi