Following the expedition, Sousa Martins defended the implementation of sanatoriums in the mountain region, and was one of the founders of the foundation of Club Hermínio, a humanitarian association created in 1888 and active until at least 1892.
After the expedition, Sousa Martins supported the establishment of sanatoriums in the mountain area and was among the initiators of Club Hermínio, a humanitarian organization founded in 1888 and operating until at least 1892.