I have come across a Frank Blackwood Sewell who was inaugurated as the Worshipful Master of a Freemasons Lodge in Sungai Petani, Kedah, Federated Malay States on its consecration on 2 Aug 1918. On a google search I have noted there was a person of the same name whose dates are given as 16 Mar 1883-12 Jun 1955, died South Guildford, Perth, Australia. I also found a mention of a the name Blackwood-Sewell on this group, which I have joined to post this information, which may be of interest to your members, but I have no other link with the name Sewell. A Charles Yule Blackwood Sewell was also a member of the same Lodge. I have a newspaper article photo of the members of the Kedah Lodge 1918.