Green’s Dictionary of Slang

sorrel-topped adj.

having red hair.

1913		Eve. Times (Grand Forks, ND) 6 Jan. 4/5: Jimmy is a freckled sorrel-topped pastimer and a brother ofd ‘Doc’ Johnson, the Cleveland first-sacker .
1931		K.C. Times 12 Nov. 20: We would like to inform a certain sorrel-topped Central Missouri editor that the name of our sheet is not the Northwest Missourian [DA].