During his 40-plus years in America, Lorant edited and authored many illustrated books - including "The New World", the first pictures of America, and a picture biography of President Abraham Lincoln. In writing his biography of Lincoln he discovered an April 25, 1865 photo of Lincoln's Manhattan funeral procession passing the home of C.V.S. Roosevelt, and spied two young boys in an upper window. He interviewed the widow of Theodore Roosevelt, Edith Carow Roosevelt, who confirmed that the two boys were Theodore and his brother Elliott. She recalled that at the age of three, she had joined the two boys at the open window. When she saw “all the black drapings” she started to weep. “They didn’t like me crying. They took me and locked me in a back room.” The anecdote became part of his history of the United States Presidents entitled "The Glorious Burden."