I've been championing Charles Roach Smith & EB Price for doing
rescue/salvage work beside sewer construction in London from the 1840s

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  a.. Wendorf is the father of what is now known as "salvage archeology."
His lengthy excavation just steps ahead of an El Paso Natural Gas pipeline
in 1950 set the standard for preserving archeological remains at a time when
post-war construction was turning massive amounts of dirt. "People started
thinking abut the destruction that was occurring every time America built a
bridge, a roadway or a pipeline," Wendorf says.