As the enclosed map shows, the 1920s also saw the formation of several township 4-H clubs. In fact, the second phase of the development of 4-H in Black Hawk County involved uniting individual members who may have belonged to a project club into township groups, with local adults as leaders. By 1934, Black Hawk County boasted fifteen girls' and seventeen boys' clubs, with an enrollment of 483 youth, in addition to forty-seven adult club leaders and three county extension agents.

    As township clubs were formed, rules and standards for 4-H organization were formulated. Rural boys and girls from ten to twenty years of age were eligible to join. Each member was expected to learn and demonstrate an improvement in agriculture or home economics, keeping a record of their work, making a public exhibit, and reporting on it to the county extension agent. Each club was required to have at least ten meetings each year, and all of these meetings were to be conducted according to parliamentary procedure. Demonstrations, games, and other activities enriched the meetings. It was at this time that the 4-H program enumerated its goals "to teach through doing and is so organized as to teach better practices in agriculture and home economics, and the finer things of rural life, while at the same time developing wholesome, industrious, and public spirited boys and girls."