The record of the marriage of my great great great grandparents on this site is as follows:
Marriage of Phillip Hopkin and Sarah

Record_ID: 47091
Entry_Number: 141
Year: 1793
Month: Dec
Day: 2
Grooms_Surname: HOPKIN
Grooms_Forenames: Phillip
Grooms_Age:
Groom_Condition: Bachelor
Grooms_Occupation:
Grooms_Residence: Parish of Woolaston in the County of Gloucester
Grooms_Fathers_Surname:
Grooms_Fathers_Forenames:
Grooms_Fathers_Occupation:
Brides_Surname: HOPKIN
Brides_Forenames: Sarah
Brides_Age:
Brides_Condition: Spinster
Brides_Occupation:
Brides_Residence: Of this Parish
Brides_Fathers_Surname:
Brides_Fathers_Forenames:
Brides_Fathers_Occupation:
Licence_or_Banns: Banns
Date_of_Banns: [not stated]
Signature_or_Mark: Both sign
Witness_1: The mark of William Williams
Witness_2: William Hulin
Other_Witnesses:
Officiating_Minister: Tho[ma]s Edmunds Curate
Event: Marriage
Memoranda:
Notes:
Register_Reference: P278 IN 1/9
Page_Number: 39
Parish_Chapel: St Briavels
Soundex_Groom: H125
Soundex_Bride: H125

I found this a bit difficult to accept - that they had the same surname and come from such a small area. However, I have found a baptism record for a Sarah Hopkin that seems to match.

Do you think I should doubt that her family name is recorded correctly, or is this not unusual and not worth suspicion? Sorry if this is a dumb question...