Kinslow played the next two seasons for the Tecumsehs, and had a batting average of .200 in 1888. In 1889, he improved is batting average to .343. In 1890, he signed with Ward's Wonders of Brooklyn. During the season, he had a batting average of .264, and caught 64 games. On June 28, he hit the first home run of his career in a game against Henry Gruber. Later, on July 11, he hit two home runs in the same game off of George Keefe.