A picnic celebrated by the Swedish Singers will be held at Riverview Grove, Sunday, June 21, at 2 P.M., sponsored by the Swedish Singing Society, of Chicago. The following choruses will participate: Svithiod, Nordstjarnan, Norrland, Zephyr, Harmoni, and Vasa. The Honorable Edward F. Dunne, Governor of Illinois, will deliver the festival address. Folk songs and folk dances will be on the program.