The locality gives the town the MP represented and numbered 1 to 399.
The Name is an A-Z of Members names with the number giving the place represented.
Also available on CD Eton School Lists 1791-1850 See Details
I also run a look-up service for a small fee - to this I am adding:
The New House of Commons with Biographical Notices of the Members and of Nominated Candidates - 1886.
464 pages giving about 15 lines to each candidate whether elected or not.
Low quality scans of the index pages follows - enough to tell if the person you are interested in is there.
AB BE EJ JP PS
Someone has removed S-Z from the index - but the entries are in the volume - listed by place - ask me.
A scanned entry (about 15 lines of biographical information) - standard fee of 5.00 pounds UK applies.