We are agreed Thomas is the first name of the witness, I can't say either way regarding the two surnames you suggest.
Nannyj
The date I am going by is the first line of the entry, where it is written in full the image is too faded.
As you said, it is unusual the way some of the years seen written, such as 1772-3 on the previous record.
Just as a matter of interest, have you noticed the signatures of the Curate and the first witness on that previous record? Jos or Jas Wifen the look the same, I have never seen anything like that before.