From O.C.F.A
THOMSON, Joel
St Alban's Anglican, Adolphustown Lennox & Addington Adolphustown KG-42-16
When, Where did Mary THOMSON nee ESTES pass away - Buried
Her Obituary - should show names of any children - and other family members
Hi I haven't checked - but the following=- might be helpful
https://news.google.com/newspapers?hl=en#CGove of Ontario - Archives - or perhaps a large University Library- may hold the early newspapers - Obituaries - in their collection. Many will not appear online - this takes time - and many dollars - or Volunteers - then the decision which papers to choose first.
Ontario Genealogical Society - May be helpful . contact them. there may be a branch in the area of Interest.