She practiced fencing with Juan Zeto and was feared throughout the province, called "Tangkad" (tall) by her peers.

Tecson and her husband were engaged in the purchase and sale of cattle, fish, oysters, and lobsters to be sold in Manila.

She joined the revolutionary forces led by Gen. Gregorio del Pilar and participated in the assault on the province of Bulacan and Calumpit.

Bringing with her sick and wounded revolutionaries, Tecson crossed the Zambales mountains to Santa Cruz then to Iba.

After the war, her second husband died and she continued in business in Nueva Ecija, concentrating on selling meat in the towns of San Antonio and Talavera.