The Lutheran Rangers/Rangerettes were established in 1963 in Wisconsin by LCMS Lutheran congregations. This was several years before the Lutheran Pioneers were established in the Wisconsin Synod.

The Rangers spread quickly, but shrank in the last three decades. Perhaps the Rangers would have spread further and been more popular had the LCMS at the time not made scouting one of the issues at play during the schism between the two synods in 1961. Basically, the Wisconsin Synod took a position that Boy Scouts were best avoided in favor of a distinctively Lutheran organization, while the Missouri Synod allowed for the Boy Scouts, but did not compel members to renounce the Wisconsin Synod's line of thinking. However, I have heard people use the scouting issue to claim that the Wisconsin Synod is guilty of legalism. But such "us. vs. them" arguments might have discouraged congregations from signing up to the Lutheran Rangers/Rangerettes.

I personally didn't participate in the Rangers/Rangerettes growing up, but I knew many kids who did, and I only remember them saying positive things about it. National Jamboree was approached with anticipation.

Here are some links if you are interested:

http://stpaulswestallis.org/spwp11/youth-ministries/

1963 news article "Boy Ranger Units Multiply"
http://tinyurl.com/c4dguze

1965 article "Rangers Hold a Convention" (describes the founding of the Rangerettes... by the way, I knew Pastor Haas, mentioned in this article, as a kid)