Hi Barbara, I think you need to be sure this is your Lewis before looking for other info. Contact Jefferson County Museum & Historical Society 34 SE "D" Street, Madras, OR 97741 and hopefully you can get a copy of an obit from them.
I also found a Lewis M. Hutchinson, who d. Deschutes Co. 7 April 1946 per death cert #2458.
And a Louis S. Hutchinson who d. Lake Co. 1946 per death cert #6925. Successful Hunting!