Pat Hannivan
Patrick James Hannivan was a Canadian professional baseball player. He played part of the 1897 season in Major League Baseball for the Brooklyn Bridegrooms. He appeared in three games as an outfielder and two games as a second baseman.
Hannivan was active in minor league baseball through the 1908 season. That offseason, he was expected to begin a job in Connecticut with the Underwood Typewriter Company but died suddenly.