| 2/1/1886 | (Unknown date Feb __, 1886 ) Monument set by F J McCarron |
| 1/1/1800 | (Unknown date ___ __, 18?? ) Elev 222.540 ft on GM. See Old Benches Book, Entry 1159 |
| 1/1/1800 | (Unknown date ___ __, 18?? ) BM Elev 222.54 feet on monument. See Old Bench Mark Book, Entry 1159. |