Jerry Denny played third base for the Maroons in 1886. According to Rick Stattler, in a series of biographical notes on members of the 1884 Providence Grays, "Denny was born in New York City as Jeremiah Dennis Eldredge to a poor Irish immigrant family in 1859. His parents moved to California when he was young, and died soon after, so young Jerry was raised in west coast orphanages. He began playing minor league ball in San Francisco in his teens under the name Jerry Denny, and came to the Grays as their third baseman in 1881."
One of the greatest of the greatest third basemen of his day was Jerry Denny, who covered that bag for the Providence Champions and then for Cleveland, St. Louis and other teams.-From The National Game
In the early eighties Denny was often referred to as the king of the third base players of his day.
He was a lightning fielder and thrower and a batsman of the first class.
1894: The Last Real Man Retires-From The Historical Baseball Abstract
The last position player who did not wear a glove in the field was Jerry Denny, an ambidextrous third baseman who retired from the Louisville team following the 1894 season. Though a right-handed batter and thrower, Denny could catch the ball with either hand, and, if the pressures of time required, fire it to first with whichever hand it happened to be in.
Bill James lists Denny, in the Abstract, as the ninety-ninth greatest third baseman of all-time and states that he recorded the most putouts per innings played at third. He also writes that "Apart from the large number of putouts credited to him there is little evidence that Denny was an outstanding defensive player." Of course he also writes, in his essay on Paul Molitor, that Denny has the best range factor (based on defensive games played) of any third baseman. Make of that what you will.