Leveling crew chief Anita Whitis with party chief Dan Frazier to left, Davey Crockett, and John Williams(left) and David ? (right) in front.

Anita Whitis observing on a level rod to left, while second rodman waits for reading across street. Recorder sits in front entering readings and doing computations on Monroe recording system. Type of setup called "L" shot.

Anita Whitis running the gun and Bob Gex recording during leveling operations at Niagara Falls. Instrument is an Ni-1 self-leveling level.

Anita Whitis moving the instrument up after completing readings on level rods. Bob Gex is the recorder.

Setup during testing of prototype motorized leveling unit at Corbin, Virginia, in December 1978. Instrument is self-leveling Ni-002 level.

Setup during testing of prototype motorized leveling unit at Corbin, Virginia, in December 1978. Instrument is self-leveling Ni-002 level.

Anita Whitis testing the prototype motorized leveling unit at Corbin, Virginia, in December 1978. Instrument is self-leveling Ni-002 level.

White House leveling crew. Anita Whitis, crew chief and instrument operator, is on the right.

Rodman "Bill" set up over a recessed mark.

Anita Whitis, running the gun on White House leveling project. The instrument is an Ni-002 self-leveling level.

Anita Whitis, crew chief and instrument operator, setting up level during White House leveling project.

Anita Whitis conducting leveling operations at the White House. Television film crews are documenting this work by the first woman crew chief in the National Geodetic Survey. Newsman Sam Donaldson is to the left in image.

Anita Whitis conducting leveling operations on the White House North Portico. Recorder is operating Monroe recording system on portico deck while rodmen have rods over marks.

Anita Whitis, running the gun on White House leveling project with recorder " Karen."

Anita Whitis conducting leveling operations at the White House. Television film crews are documenting this work by the first woman crew chief in the National Geodetic Survey.

Anita Whitis, crew chief and instrument operator, reading rod during White House leveling project. She is operating an Ni-002 self-leveling level.

Anita Whitis, crew chief and instrument operator, reading rod during White House leveling project. She is operating an Ni-002 self-leveling level.

Anita Whitis with Chief of Party G-37 Robert Gerish. This was Anita's first National Geodetic Survey leveling crew.

Bilby towers in storage.

Tower building crew from party G-19. From upside down center clockwise: Rick McCahill, Gary Means, Frank Maida, Jerry Kirshner, Fred Buck, and Steve Randall.

George Leigh on TMOT. He has one foot on the inner instrument tower and one foot on the outer observer tower.

Lois Leigh climbing Bilby Tower.

Lois Leigh climbing Bilby Tower.

Looking down through the "red" inner tower of a Bilby tower towards collimating instrument over mark.

Looking up the inside of a Bilby tower to the bottom of the observing platform.

Sand bags used as counterweights to support Bilby tower in areas where anchor holes could not be dug.

Closeup of sandbags anchoring Bilby tower.

Short 37-foot Bilby tower. Note observing tower surrounded by outer support tower.

Looking from the observing platform upward to the light plate. Lights and mirrors are mounted on this plate and pointed to observers at remote survey marks.

Looking down on the observing platform and top of the inner ("red") tower.

Closeup of the window (glass) leg. This moveable tower piece was adjustable to help assure that no line of sight was obstructed by a fixed tower leg.

A cold looking Bilby tower with observing tent in place. The tent was to keep wind off the instrument.

Open house in Cabool, Missouri. Ron Ramsey, in cowboy hat, explaining equipment to visitors.

Open house in Cabool, Missouri. Lieutenant John Oswald, NOAA Corps, on left. He was Chief of the triangulation party.

Swedish pole used to show light and mirrors in the lowered untelescoped position.

Swedish pole showing equipment mounted on moveable arm with electrical power provided by truck battery.

Swedish pole mounted on special truck rack which allowed one person to set up pole.

Swedish poles after being erected from special truck rack.

Swedish pole just separated from rotating bracket on special truck rack.

Using vertical collimator to center equipment at top of left-most pole over survey mark.

Swedish poles with lowest set of guy wires secured.

George Leigh atop pole's ladder installing survey equipment and hooking up electrical connections. Also connecting additional guy wires that will be tightened after the pole is telescoped.

Leonard Bergman telescoping TMOT in Missouri.

Telescoped TMOT. Note arm with line projecting to right from top of TMOT. This was used to haul up equipment.

Swedish pole still attached to rotating arm of special truck rack.

TMT being erected next to pre-erected telephone pole.

TMT being telescoped next pre-erected telephone pole.

Leonard Bergman with piece of observing cage in hand preparing TMOT for erection.

Leonard Bergman preparing TMOT for erection.

Leonard Bergman preparing TMOT for erection.