Extra Credit Questions

[AussieMick]

Ok, Eva. I have no specific idea ... but I'd guess that photo was taken about 1930-1940 (based on his clothing and ... well, the photo style itself) and he is aged about 45 -50. So born maybe 1880 - 1885. ?
Based on stance and confident look ... but not a politician's "cockiness" ... serious ... an academic (author or scientist) thats used to doing presentations. Whats that in the foreground ... maybe a document?

I'd guess that his main claim to fame would have occurred in ... 1920'ish