Is this the first palindrome incorporating a state name? (it was published in Notes & Queries under Leigh Mercer's name in 1958.) The most recent Word Ways state name collection is Dave Morice's set of 24 in the November 1996 Kickshaws.
Connett, John E.
""Not New York" Roy Went On,"
Word Ways: Vol. 32
, Article 10.
Available at: https://digitalcommons.butler.edu/wordways/vol32/iss1/10