Not much is left of Licking Township’s District 3 schoolhouse, commonly known as Corn Cob. The school was one of Blackford County’s earliest to be discontinued. It closed in 1907 under a law that compelled township trustees to shut down schools whose attendance had fallen below twelve pupils, as well as to provide transportation for all students who lived two miles from the school they were compelled to attend¹. After Corn Cob closed, its students were sent to the District 5 school, known as Pleasant Grove².