John Carroll Power served as the first custodian of a tomb of a president and how many of his sons ?
Lincoln Tomb The Lincoln Tomb is the final resting place of the 16th President of the United States, Abraham Lincoln, his wife, Mary Todd Lincoln, and three of their four sons. It is located in Oak Ridge Cemetery in Springfield, Illinois.
Robert Todd Lincoln Robert Todd Lincoln (August 1, 1843 – July 26, 1926) was an American politician, lawyer, and businessman. He was the first son of President Abraham Lincoln and Mary Todd Lincoln. Born in Springfield, Illinois, he was the only one of Lincoln's four sons to live an adult life (his brother Tad Lincoln died shortly after his 18th birthday), and the only member of the family to survive into the 20th century.