The Senior Flags victory of 1896 was the start of the first of two all conquering periods. For eight consecutive seasons from 1896 to 1903 Stockport swept aside all opposition to win the Flags, a record that has not been equaled since. In the same period the Iroquois Cup and First division Championship were both won six times.

The Club has to thank in particular two families, the Masons and Johnsons who's family members made up between them nine out of the total of twenty who played on the team during that period. The Mason family alone accounting for six of the players.

A major trophy of the period remains in the possession of the Club. This is the Flags Final Challenge Flag, which was won outright in 1898. The flag is a large, finely detailed embroidered Trophy depicting two lacrosse players dressed in the kit of the period stood on each side of a shield, with the winning Clubs of the previous seasons scrolled on each side. The Challenge Flag is permanently on display at the Club's Headquarters.