In an effort to keep the on-screen markers as minimal as possible I’ve used the below abbreviations for sourcing.

A/DHD – Arlington-Deming Historical District Report 

AtC – Atlas of Chicago

AmC – American Contractor

BBC – Block Book of Chicago

BC – BlockClub – local non-profit online news

CBB – Chicago Blue Book 1890 1891

CBF – Chicago Building Footprints – a city run data portal. Too many clear discrepancies to be really trustworthy.

CDT – Chicago Daily Tribune

CEg – Chicago Eagle

CST – Chicago Sun Times

CHRS – Chicago Historical Resource Survey

CMS – Central Map Survey and Publishing Co

CPL – Chicago Public Library

CCDR – Cook County Death Records, most likely accessed from FamilyResearch.org

CCA – Cook County Assessor

CSM – Chicago Suburb Maps

CoN – Construction News

DT – Chicago Daily Times, accessed through CPL

DzC – Dziennik Chicagoski (Polish language Chicago newspaper)

ED – Evanston Directory

EDCL – Elite Directory and Club List (1888)

FaG – Find a Grave

FC – Forgotten Chicago

GCCA – Greeley-Carlson Company’s Second Atlas of the City of Chicago

GRs- Google Reviews

GSV – Google Street View

HoC (A Andreas, 1886) – History of Chicago; from the earliest period to the present time (Alfred Andreas, 1886)

HotCPHistory of the Chicago Police (John J Flinn, 1887)

LAD – Lakeside Annual Directory – (1885 & 1887)

MBD – Marquis & Co Business Directory 1886-87

NWJ – Napa Weekly Journal

PD28 – Polk’s Directory 1928

PD23 – Polk’s Directory 1923

RAC – Robinson’s Atlas of the City of Chicago – fire insurance map

RAtC – Rascher’s Atlas of Chicago

RMCS – Rascher’s Map of Chicago Suburbs – fire insurance map

RDE – Reverse Directory of the Elite of Chicago (1880, 1883)

RM – Rascher’s Map – fire insurance map

RLV – Rascher’s Atlas of Lake View Township – fire insurance map

RNHP – Rascher’s Atlas North End of Hyde Park

RPWRHS – Rogers Park West Ridge Historical Society

SbE – Suburbanite Economist

SFH – Single family home

SM – Sandborn Map Co – fire insurance map

SME – Sandborn Map Co – Evanston fire insurance map (1920)

SPM – Sanborn-Perris Map Co – fire insurance map

SMCCNS – Sanborn Map Cook County North Shore

StE – Southtown Economist

TJS – The Journal Standard (Freeport, IL)

UICP – University of Illinois Chicago Chicago building permit collection

WiD – Wilmette Directory

YMCBD – Map of Central Business (published by Charles Yerks)