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- From an arrangement in which two couples face one another and two couples face out of the set: Simultaneously, the couples facing each other do a Pass Thru and the couples facing out do a Partner Trade. NOTE: Trade By can be done from both "Clover And" formation or from a squared set in which one set of couples is facing in and the other set is facing out. BACKGROUND NOTE: The name "Trade By" has been applied to a portion of a more involved earlier movement called Barge Thru by Manny Amor, Lakewood, NJ. On Barge Thru, from facing lines, dancers do a Half Square Thru, then those facing out do a Partner Trade while those facing in do a Pass Thru to finish in eight chain thru formation. This in turn led to the invention of a whole string of "Barge" movements (See the Controversial Section). Choreographers soon recognized that the essential factor about Barge Thru was the "Centers Pass Thru while those facing out Partner Trade." The formation from which this was done ordinarily had first been termed "Wheel And" formation; then it acquired the name of "Clover And" formation. Today, it is generally called "Trade By" formation. At any rate, from Clover And formation, callers started inventing their own names for this Partner Trade plus Pass Thru combination. Vaughn Parrish, I believe, called it "Do That Little Thing" (DLT), and some others used the term "Do Your Thing." Finally Bill Davis called it "Trade By" and that's where we are today.
- Bill Davis 1969
