Not sure how to find this particular information, have tried many research avenues. Looking for any assistance in how to find someone who was employed or a student nurse at Waukesha Springs Sanitarium in 1919. Looking for information or possible photographs of Bertha Hills (or Tanner) who is listed as a nurse employed at the Waukesha Springs Sanitarium in the 1919 City Directory for Waukesha. Unable to find any research avenues to verify her status of employment or student nurse status at this facility. Does anyone have any suggestions on how to find this information on a now long closed private sanitarium, if so, I would appreciate any help, assistance, or suggestions on how to access records or archives from this institution. Have no clue in this query. Thanks so much to anyone who may be able to help me with this!