Original: Kellner was the only child of Georg Friedrich Kellner, a baker and confectioner from the town of Arnstadt in Thuringia, and Barbara Wilhelmine Vaigle from Bietigheim-Bissingen near Ludwigsburg.
Simplified: He was the only child of Georg Friedrich Kellner, a baker from the village of Arnstadt in Thuringia, and Barbara Wilhelmine Vaigle from Bissingen.