Who was Lumsden?
Actually the question title is an incorrect question. It should be, who were the Lumsdens, because it seems there were three, all brothers, who are said to have played hockey, football, cricket and tennis.
And when you are done looking at this site for the Scots input on football world-wide, here are two more.
For those who literally want to trace on the ground the local development of Scots and Scottish football in our own and other countries there is the newly available and ever-expanding site of:
The Scots Football Historians' Group
And on Scottish sports history in general but inevitably including fitba', see Andy Mitchell's inestimable: