U. Ray and Sons was a privately held blockmaking, printing and publishing firm in Calcutta, India founded by Upendrakishore Ray in 1895. At its inception the firm was named U. Ray after its owner; and
Upendra kishore Ray chowdhury, Founder
Sukumar Ray with his father, Upendrakishore Ray, mother Bidhumukhi, and five siblings
A group photo of the Monday Club, founded by Sukumar Roy First row sitting from left: Subinoy Ray, Prasanta Chandra Mahalanobis, Atul Prasad Sen, Shishir Kumar Datta, Sukumar Ray Middle row from left: Jatindranath Mukhopadhyay, Amal Home, Suniti Kumar Chattopadhyay, Jibanmoy Roy Standing from left: Hiran Sanyal, Ajit Kumar Chakrabarty, Kalidas Nag, Pravat Chandra Gangopadhyay, Dr. Dwijendranath Maitra, Satish Chandra Chattopadhyay, Shrish Chandra Sen, Girija Shankar Roy Choudhury