Which coach was the first one to teach the Montreal Canadiens, please give his first name.
the first one refers to MIN(year);
SELECT T3.firstName FROM Coaches AS T1 INNER JOIN Teams AS T2 ON T1.tmID = T2.tmID AND T1.year = T2.year INNER JOIN Master AS T3 ON T1.coachID = T3.coachID WHERE T2.name = 'Montreal Canadiens' ORDER BY T1.year LIMIT 1