cipher - Whisky treasure-hunt: Cryptogram which refers to a place in Scotland

UPDATE 4 - Inserted original list of questions (no more, no less)

Could someone help me solve this code? I've tried for 35 years.

13 25 22 19 9 30 32 11
12 25 8 29 17

It is a place name in Kirkcudbrightshire Scotland, perhaps something like a castle or a tower or bridge or monument. This is question 4, as shown on the following sheet. The answers that are shown include National Grid reference numbers for each location.

When I was so frustrated I requested another clue of the author. Here are the three additional ciphers that I received:

19 9 25 15 22 29 30 13
14 26 10 17 24 28 25 28 16 34 27 27

27 12 26 9 20 31 14
20 14 25 29

19 25 13 30 17 24
7 17 29 15 31 12 22

If it helps, here is a website that shows about 8000 named places in Kirkcudbrightshire. These named places are listed within each of the 28 parishes.

Update: OP says correct answer for Q3 is more likely to be NX 64454 74089.