Upendrakishore Ray Chowdhury was a Bengali writer, painter and entrepreneur. One of his written books is Chotoder Shera Bigyan Rochona Shongkolon. He was the son-in-law of reformer Dwarkanath Ganguly. He was also an entrepreneur. He was the first person who introduced color printing in Bengal. He started the first colour children's magazine Sandesh in 1913.

Dwarkanath Gangopadhyay was a Brahmo reformer in Bengal, British India. He made substantial contributions towards societal enlightenment and the emancipation of women. Ganguly dedicated his life to the latter cause, encouraging women to participate in politics and the social services. He was the husband of the first female Indian physician, Kadambini Ganguly.