If you obtain their marriage certificate, (which you can order from the General Register Office from anywhere) it should give her father's name. Then, try looking at indexes available via FindMyPast, searching for Emmas born 1824 in Combe Martin. Then, using the results, FREEBMD shows that an Emma GOULD married a Thomas PULFRAY in Dec qtr 1843, Barnstaple district. Obtain that marriage certificate and hopefully the two fathers match.