1934 – Boswell was born in Missouri on the 10th of January.
– He was educated at Graceland University in Lamoni, Iowa.
1956 – He was first drafted in the Army as a private.
– He later graduated from Artillery Officers Candidate School, eventually rising to the rank of Lieutenant Colonel.
– He was a farmer and a member of the Iowa Senate before entering the House.
1994 – Boswell was also the Democratic nominee for Lt. Governor of Iowa.
– Boswell is a member of the Community of Christ.
1993 – He was president of Iowa senate.
1997 – He became representative from Iowa.
2002 – On the 10th of October, Leonard Boswell was among the 81 House Democrats who voted in favor of authorizing the invasion of Iraq.
2005 – Boswell had a non-cancerous tumor removed from his stomach.