Criminal sodomy statutes in effect in 1868: Alabama: Ala. Rev. Code 3604 (1867). Arizona (Terr.): Howell Code, ch. 10, 48 (1865). Arkansas: Ark. Stat., ch. 51, Art. IV, 5 (1858). California: 1 Cal. Gen. Laws, 1450, 48 (1865). Colorado (Terr.): Colo. Rev. Stat., ch. 22, 45, 46 (1868). Connecticut: Conn. Gen. Stat., Tit. 122, ch. 7, 124 (1866). Delaware: Del. Rev. Stat., ch. 131, 7 (1893). Florida: Fla. Rev. Stat., div. 5, 2614 (passed 1868) (1892). Georgia: Ga. Code 4286, 4287, 4290 (1867). Kingdom of Hawaii: Haw. Penal Code, ch. 13, 11 (1869). Illinois: Ill. Rev. Stat., div. 5, 49, 50 (1845). Kansas (Terr.): Kan. Stat., ch. 53, 7 (1855). Kentucky: 1 Ky. Rev. Stat., ch. 28, Art. IV, 11 (1860). Louisiana: La. Rev. Stat., Crimes and Offences, 5 (1856). Maine: Me. Rev. Stat., Tit. XII, ch. 160, 4 (1840). Maryland: 1 Md. Code, Art. 30, 201 (1860). Massachusetts: Mass. Gen. Stat., ch. 165, 18 (1860). Michigan: Mich. Rev. Stat., Tit. 30, ch. 158, 16 (1846). Minnesota: Minn. Stat., ch. 96, 13 (1859). Mississippi: Miss. Rev. Code, ch. 64, LII, Art. 238 (1857). Missouri: 1 Mo. Rev. Stat., ch. 50, Art. VIII, 7 (1856). Montana (Terr.): Mont. Acts, Resolutions, Memorials, Criminal Practice Acts, ch. IV, 44 (1866). Nebraska (Terr.): Neb. Rev. Stat., Crim. Code, ch. 4, 47 (1866). [478 U.S. 186, 194] Nevada (Terr.): Nev. Comp. Laws, 1861-1900, Crimes and Punishments, 45. New Hampshire: N. H. Laws, Act. of June 19, 1812, 5 (1815). New Jersey: N. J. Rev. Stat., Tit. 8, ch. 1, 9 (1847). New York: 3 N. Y. Rev. Stat., pt. 4, ch. 1, Tit. 5, 20 (5th ed. 1859). North Carolina: N.C. Rev. Code, ch. 34, 6 (1855). Oregon: Laws of Ore., Crimes - Against Morality, etc., ch. 7, 655 (1874). Pennsylvania: Act of Mar. 31, 1860, 32, Pub. L. 392, in 1 Digest of Statute Law of Pa. 1700-1903, p. 1011 (Purdon 1905). Rhode Island: R. I. Gen. Stat., ch. 232, 12 (1872). South Carolina: Act of 1712, in 2 Stat. at Large of S. C. 1682-1716, p. 493 (1837). Tennessee: Tenn. Code, ch. 8, Art. 1, 4843 (1858). Texas: Tex. Rev. Stat., Tit. 10, ch. 5, Art. 342 (1887) (passed 1860). Vermont: Acts and Laws of the State of Vt. (1779). Virginia: Va. Code, ch. 149, 12 (1868). West Virginia: W. Va. Code, ch. 149, 12 (1868). Wisconsin (Terr.): Wis. Stat. 14, p. 367 (1839).Poor question beggar.
Of course when it comes to a federal gay marriage amendment, well, the federal government should butt out (sorry) and leave this issue up to the states.