[quote="Brendan, post:4, topic:318658"]
Probably not, as their are a huge number of recognized religious orders and institutes.
As Lily noted, if you are interested in the spirituality of St. Thomas Aquinas, that would be the Dominicans.
Their charism is study and preaching authentic Truth, their official name is the Order of Preachers - Ordo Praedicatorum in Latin.
They have several Provinces (administrative units) within the US.
This would be a good place to start,
It's a good research for investigating the charism of the Dominicans. At the very least, they could direct you to the province in your area.
Brendan, I can't get your sheep to copy, but this (Greensleeves parody) sprung to mind when I saw them…
Green sheep are my delight
Green sheep are my heart of gold
Green sheep are my heart of joy
And none but my line of green sheep.