Why don't you get a non-certified copy of Oliver LEE's death cert? That should show his birthplace and the names and birthplaces of his parents. A 1915 obit will probably not be of much help. Early death notices usually contained only basic facts, (name, time and place of services, etc.) unless the deceased was a prominent citizen.
To get a Lucas Co. death cert, send the person's name, date of death, a $1 postal money order and a SASE to: Vital Statistics Toledo-Lucas Co. Health Dept. 635 N. Erie Street Toledo, OH 43624
Certs are usually mailed within 2-3 business days.