[1] Among his other progeny, Watercress sired the 1903 U.S. Champion Older Male Horse Waterboy who set a World Record of 2:03 1/5 for 1+1⁄4 miles on dirt in the Brighton Handicap.
[5] Pearl V.'s dam was the great Firenze, a four-time National Champion racemare and a Hall of Fame inductee.
[6] Race conditioned by future Hall of Fame trainer Jack Joyner, Water Pearl made his first start on May 16, 1906, at Belmont Park, finishing unplaced.
[9] The next day the new racing partnership watched Water Pearl win Part 2 of the Double Event Stakes.
[10] Illness then kept Water Pearl from racing and he did not run in the rich Belmont Futurity Stakes at Sheepshead Bay.