Both these gentlemen abandoned the Know Nothing Party the year after its formation.

Mr.Thayer was elected as a Republican to Congress in 1856, and reelected in 1858.
But he separated from his political associates and espoused the squatter sovereignty doctrines of Stephen A.Douglas.
He, I have no doubt, was a sincere Anti-Slavery man.

But he liked to do things in peculiar and original ways of his own, and was impatient of slow and old-fashioned methods.
So he got estranged from his Republican brethren, was defeated as a candidate for Congress in 1860, took no part in public activities during the time of the war, became somewhat soured, and landed in the Democratic Party.

I always had a great liking for him, and deem him entitled to great public gratitude for his services in the rescue of Kansas from what was known as Border Ruffianism.
Neither Charles Sumner nor Charles Allen ever tolerated the Know Nothing movement or made any terms with it.

Its proscriptiveness and its secrecy were alike repugnant to their honest, brave and liberty-loving souls.