His son, Eiji HIRATA, was a Japanese-style painter, and the second son of Eiji, Masaharu MATSUSHITA, became the adopted son-in-law of Konosuke MATSUSHITA and became the chairman of Panasonic.
息子の平田栄二は日本画家で、栄二の次男・松下正治は松下幸之助の娘婿となりパナソニック会長を務めた。