Calvin Coolidge was the 30th President of the USA. He had sandy red hair and was nicknamed "Red" in his youth because of it.
His official portrait shows him looking distinctly ginger.
Dwight D. Eisenhower was the 34th President. Sadly, I couldn't find a gingeresq picture of him though :(
Ulysses S. Grant was the 18th President. Interestingly, his first name was actually Hiram. Very Masonic. Unsurprisingly I guess for US Presidents of the time. Again finding a definitive image is difficult, most being portraits or black and white photographs. The general consensus seems to be that he had dark brown/sandy coloured hair.