Correspondence, reports, and transcripts relative to 1906 investigation of Italian employees of the commission; lists of employees and rates of pay; and applications and recommendations for employment. A series of volumes, 1899- 1905, with the names, residence, ward, class of labor, date starting and ending work, and supervisor comments for employees of the commission. Entries are arranged roughly by year; an incomplete set of index volumes are also available.

Weekly payroll charges from January 1907 - December 1912 for various commission functions are available on microfilm (BCA 188).