Hi, I am not related but would like to help. You say Clarence Healey died in 1927.
Do you know where he died? If so, try to get his death record from the Board of Health from the county where he died. Most of the time they will have the parents names recorded on the death certificate--if the informer knew the information. You do no have to buy a death certificate---just ask what information is on the death record. Of course you can buy the record if you will need proof of his parents for lineage societies.