Jim Bob Duggar and his wife, Michelle Duggar, got to meet their 39th grandchild shortly after his birth. Jim Bob and Michelle's daughter Jessa Duggar recently gave birth to her sixth baby, another son, in late July. She shared the news of her little one's arrival in early August in a series of YouTube videos. "No. 39," Jim Bob, 60, said in footage shared via YouTube on Friday, August 8, holding his newest grandson. "He's a keeper. How much did he weigh?" Jessa, 32, then told her father that her son - whose name she has yet to publicly share - weighed "10 pounds even.