Hello.Alexander Lloyd Metcalfe and Adelade McKee Metcalfe were my great grandparents.(We have her name as being spelled Adelaide, however.)And generally speaking, almost nothing is known about them, except Alexander's nickname was "Buzz".
Russel and Lloyd were my grandfather's brothers, and not too much is known on them, other then their deaths in the early 60's, and various dates and brief facts.Robert, my grandfather died when I was 9 (1977), but had a somewhat interesting employment history, one which includes being a training pilot for the Canadian RAF before WW2 started.
One of the reasons you may have trouble finding info on them is because Alexander and later Robert often lied about being from Michigan (USA) I have to assume for citizenship reasons.Thus records are often contradictory.
Robert married Nadine Capelli, and had three children.Lynne, Doug, and Richard (who is my father).All three are still alive, but our family never paid attention to family trees, history, etc., so details are sparse.