steam shovels Books

Digger man

Andrea Griffing Zimmerman

Digging by Steam (Map Technical Publication)

Colin Tyler

Erie shovel photo archive

Historical Construction Equipment Association, Donald Frantz

Mike Mulligan and His Steam Shovel

Steam shovels and steam shovel work

E.A Hermann

The Brave Little Steam Shovel

Alf Evers

The diggers

Margaret Wise Brown