Many of the nephews of my Irish gggrandfather John Guinane (who lived in nearby Idaho Springs, CO) were in Leadville in it's heyday: Mart Duggan (1847-1888) - the (in-)famous Marshal of Leadville, livery-keeper Stephen Duggan - saloon keeper Thomas Duggan - bartender Michael Duggan   Parents James Duggan & Mary (Guinane) Duggan lived north of Denver, on a farm on the Platte River.