This copy of St. John's Manual belonged to the archbishop of New York at the time. A handwritten signature and cross of John Hughes is on the page adjacent to the copyright page ( John, Abp of N York) .The last picture shows the autograph from his Wikipedia page
John Joseph Hughes (June 24, 1797 – January 3, 1864) was an Irish-born Catholic prelate who served as bishop (and later archbishop) of New York from 1842 until his death. In 1841, he founded St. John's College, which would later become Fordham University.