I like Ivy and Seth and Ivy and Jude!
What about: Aaron, Amos, Ambrose, Conrad, Caspar, Daniel, Edmund, Eli, Elijah, Francis, Frederick, George, Hector, Hamish, Henry, John, Jim, Leo, Oscar, Saul, Solomon, Stanley, Theo, Ted, Victor, Winston, Wilfred?
We have an Ivy in the family, who was married to Avram (Abraham) but didn't have any brothers that I know of!