Excellent, thank you!

Literally looking there right now and nope - one of us must have a different edition?!?

I just looked through ALL of the 1908 edition of Jack's Manual and there is no "Clover Leaf." I'm trying to clarify exactly where you found your reference.

I scoured the 1908 1st edition of Jack's Manual on the EUVS archive and didn't find any mention of either a Clover Leaf or Clover Club. The first listed 1910 edition on there (must be 2nd edition?) does contain a Clover Leaf, and the 1910 3rd edition does have both Leaf & Club with the recipes you have here. This would put the earliest mention (1901), earliest recipe (1901), and earliest cocktail book publication (1909) of a Clover cocktail as the Club, not the Leaf, right?