elcome to the online home of The Historical Society of Dauphin County and the John Harris-Simon Cameron Mansion. The Historical Society of Dauphin County (HSDC) was founded in 1869 and has been headquartered at the Harris-Cameron Mansion, a National Historic Landmark, since 1941.

The mission of the HSDC is to collect, preserve, exhibit, publish, and promote interest in the history of Dauphin County for the education, enjoyment, and benefit of the public.

We welcome your interest in our collections, efforts, programs, and services.

HSDC Happenings

Find out what's going on at HSDC by checking out our new blog:


The Oracle

Check out the latest issue of the Historical Society's newsletter, The Oracle. If you want to catch up on any HSDC news you might have missed, back-issues are also available.

An Evening with John Harris, Jr.
at Historic Mount Hill Tavern

If you have never spent an evening with Mr. Harris, you are in for a treat! Good food, good fun, Colonial games and songs, and lots of conversation with an important historical figure. $35 per person. Please make your reservation early by calling 233-3462.

Find more information about this event on our blog:

The Lincoln Funeral Train

SUNDAY, APRIL 12 - 3:00 p.m. - "The Lincoln Funeral Train"

The program will take place in the Mansion's Victorian parlor. A guided tour of the Mansion will be available at 1:00 p.m. A donation of $5 is requested. Historical Society members are admitted free of charge. Free parking is available in lots behind the Mansion. The Society's research library will be open from 1:00 p.m. to 4:00 p.m.

Find more information about this event on our blog:

See More Civil War 150 Events in Dauphin County

Thank You Deck the Halls Sponsors

2014 Annual Report

To see the highlights of the Historical Society's 2013-14 fiscal year, please view our Annual Report.

Mansion Renovation Update - Porch Dedication

Thank you to Dauphin County for giving $100,000 towards the renovation of the front porch of the Harris-Cameron Mansion. County Commissioners George Hartwick, III and Mike Pries attended our dedication ceremony and press conference on November 20 along with HSDC board members, staff, and project participants.

Building Harrisburg: The Architects and Builders, 1719-1941

Building Harrisburg Cover

Ken Frew's epic account (400 pages, 350-plus illustrations) of the history of Harrisburg’s architects, builders and buildings is now available for purchase.

Buy "Building Harrisburg" Online

Online Gift Shop

Visit the Gift Shop

Support HSDC while getting something in return. Our online shop includes the Society's journal, Susquehanna Heritage, as well as Publications from the Past, which include transcripts of addresses given before the Society that cover topics such as transportation, industry, military and church histories.


  • Alexander Research Library
  • Monday through Thursday and the Second Sunday of the month
  • 1:00pm to 4:00pm
  • Research Information
  • Mansion Tours
  • Monday through Thursday at 1:00pm, 2:00pm and 3:00pm
  • The Second Sunday of each month at 1:00pm
  • Tour Information
  • Society Office
  • Monday through Thursday
  • 10:00am to 4:00pm
  • * For research and tour hours
  • please see above information *