Kurt and Rachel (Kohlbusch) Koch, New Haven, announce the birth of a son, Jacob Mark Koch. Born Nov. 17, 2012, at Mercy Hospital Washington, he weighed 9 pounds, and was 20 1/2 inches long.

Jacob joins Kyle William Koch, 20 months.

Maternal grandparents are Sandy and Janet Kohlbusch, New Haven. Paternal grandparents are Mark and Kathy Koch, New Haven.