eHymns.org

Oscar Ahnfelt (1813 -1882) was a Swedish singer and composer. He wrote the music for many of Lina Sandell’s hymns. A pietist, he raised some concern in the State-church, but his music was apparently so popular, King Karl XV gave him permission to play and sing in both of his kingdoms. Ahnfelt’s music has spread throughout the world; two of his best-known songs are “Children of the Heavenly Father” and “Day by Day.”

Source: https://hymnary.org/person/Ahnfelt_Oscar