Who is the man next to Mr. Ranganfu in the photo? Is it his son?

Ranganfu, professor. Yilong people in Sichuan. 1943 graduated from the animal husbandry and veterinary department of Guangxi University. He used to be a lecturer and technician in Hubei Agricultural College. After the founding of the People's Republic of China, he served as a lecturer, associate professor, professor, director of veterinary department, member of the Standing Committee of the Central Committee of the Agricultural Workers' Party, and vice chairman of the 6th CPPCC of Inner Mongolia Autonomous Region. He is a member of the Sixth Committee of China People's Political Consultative Conference. As for the man next to him, it is not his son!