gptkb:Haymarket_affair gptkb:Homestead_Strike gptkb:Pullman_Strike gptkb:Great_Railroad_Strike_of_1877 gptkb:Baltimore_Plot
Adams Express Company robbery investigation
Bald Knobbers investigation
Butch Cassidy and the Sundance Kid investigation
Great Northern Railway robbery investigation
Jesse James investigation
Molly Maguires investigation
Northern Pacific Railway robbery investigation
Union Pacific Big Springs Robbery investigation
Wells Fargo robbery investigation
protection of Abraham Lincoln
protection of President-elect Abraham Lincoln
detective work
strikebreaking
involvement in labor disputes
involvement in the Great Railroad Strike of 1877
involvement in the Homestead Strike
private security services
protection of Abraham Lincoln