It's been happening since at least the early 1980s:
"By day, Judge Gerald Levy dispenses justice as an adminstrative law judge for the New York State Department of Labor. By night, he is a co-leader of three Girl Scout troops on the West Side.
By day, Dr. Gerald Lieblich teaches mathematics at Bronx Community College. But every Friday afternoon he becomes the leader of a Brownie troop in Spring Valley, N.Y.
By day and by night, Capt. Robert Oellerich fights fires in Staten Island with his Ladder Company 84. But several times a month he leads a troop of senior Girl Scouts on Staten Island.
To these men, today is more than just Friday, March 12. It is the 70th anniversary of the Girl Scouts in the United States, the organization that has become a major part of their lives through many hours of volunteer work.
They are among a growing number of busy, executive-level men who are volunteering to become Girl Scout troop leaders. They give various reasons for their decisions: the shortage of leaders, caused by the entry of more and more women into the job market; they wanted to spend more time with their daughters; if they hadn't volunteered there would have been no troop for their daughters.
''I did it because no one else would,'' said Richard Fallon, 34 years old, an executive at Instrumentation Engineering in Franklin Lakes, N.J., who leads a Brownie troop of which his daughter, Christa, 8, is a member. ''The town I live in, East Rutherford, doesn't have a good Girl Scout organization, and if I didn't do it, there would have been no troop at all for the girls.''
www.nytimes.com
And then there is this:
The Men Who are Man Enough to be a Girl Scout
Are You Man Enough to be a Girl Scout?! The Man Enough to be A Girl Scout campaign is about recognizing men who are involved in Girl Scouts. When the men in a Girl Scout’s life step up to be …
allthingsgirlscouts.com
and this
Male Girl Scout Leader Explains Why His Welder’s Toolbox Is Now Filled With Glitter
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John “Doc” McFadzen is 6-foot-2, about 250 pounds and has 86 tattoos and a beard. He’s also got holes in his ears.
He might be the last guy you’d expect to be in charge of a Girl Scout troop, and while he’s not the only male who leads a girl group, McFadzen definitely stands out.
He’s one of a kind. McFadzen is part of an expansion program that seeks to bring scouting to girls in different and new cities.
McFadzen runs Daisy Girl Troop 6825. The group formed earlier this year and is made up of 6- and 7-year-olds.
"He helps us learn new things and and also learn new games," says scout Sofia Gomez.
losangeles.cbslocal.com