 During the 1938 pecan-sheller's strike led by Emma Tenayuca in San Antonio, UCAPAWA president Henderson dispatched organizer Luisa Moreno to turn the local, "El Nogal", into an efficient bargaining organization.Tenayuca had by then already established the Texas Pecan Shelling Workers Union, UCAPAWA Local 172.Their primary grievances put forth against the Seligmann Company were a 15% pay cut, deploring plant conditions, and unpaid homework.