{"id":771,"featured":0,"modified":"2026-04-17 19:40:09","latitude":46.58528780000000324434950016438961029052734375,"longitude":-112.03653930000001537337084300816059112548828125,"title":"Cannon House","subtitle":"Helena South-Central Historic District","fullsize":"https://historicmt.org/files/fullsize/b307588ba642168bc7d325fc3f70225c.jpg","address":"303 East Broadway Street, Helena, Montana","all_locations":[],"zoom":17,"creator":["Montana National Register Sign Program"],"description":"Pioneer capitalist Charles W. Cannon built this architectural gem for his bride, Catherine, in 1868. It was then Helena’s finest residence and is today a splendid local example of the Carpenter Gothic style. The steeply pitched roof and lancet windows typify Gothic design, while turned spindles, pierced columns, and matching porch skirting showcased the talents of local carpenters. Cannon was an influential figure, whose interests extended from mining, ranching, and real estate to Helena’s first public utilities. Catherine, renowned for her hospitality, opened portions of the home for use as Territorial Governor Crosby’s executive mansion in 1883. The Cannons developed Helena’s scenic Le Grand Cannon Boulevard in memory of their son. Catherine outlived her husband, remaining here until 1916.","sponsor":null,"accessinfo":"Private","lede":"","website":"","related_resources":["<a href=\"https://npgallery.nps.gov/NRHP/GetAsset/2c2afcc9-c5d4-42dd-92e6-240499c476a1\" target=\"_blank\" rel=\"noreferrer noopener\">Read about the Helena South-Central Historic District</a>","<a href=\"https://npgallery.nps.gov/NRHP/GetAsset/c921dea4-8541-4ac1-b9c3-cb878d69fdbc/\" target=\"_blank\" rel=\"noreferrer noopener\">See photos of the Helena South-Central Historic District</a>"],"factoids":[],"files":{"https://historicmt.org/files/fullsize/b307588ba642168bc7d325fc3f70225c.jpg":{"id":2616,"mime-type":"image/jpeg","title":"Cannon House","description":"Cannon House (PAc 91-51 South Central Helena Roll17 F10). Front to side view of the house, facing south to southeast on East Broadway Street near the intersection of East Broadway and South Ewing Street. B&amp;W. | Montana State Historic Preservation Office from the Photograph Archives at the Montana Historical Society | 1981 | Photographer unidentified","thumbnail":"https://historicmt.org/files/square_thumbnails/b307588ba642168bc7d325fc3f70225c.jpg"},"https://historicmt.org/files/fullsize/f192e7f2d37f0a52a3cde61e29c0bc0e.jpg":{"id":2583,"mime-type":"image/jpeg","title":"Cannon House","description":"Cannon House (PAc 91-51 South Central Helena Roll09 F40). Side view of the house, facing east to southeast on South Ewing Street near the intersection of South Ewing and East Broadway Street. B&amp;W. | Montana State Historic Preservation Office from the Photograph Archives at the Montana Historical Society | 1981 | Photographer unidentified","thumbnail":"https://historicmt.org/files/square_thumbnails/f192e7f2d37f0a52a3cde61e29c0bc0e.jpg"},"https://historicmt.org/files/fullsize/0b829fbd96b3f6c9ec159d353eb35f6f.jpg":{"id":3380,"mime-type":"image/jpeg","title":"Cannon House","description":"Cannon House. Front to side view of the house, facing southeast on the corner of East Broadway Street and South Ewing Street. Digital photograph. | Montana Historical Society | June-Aug. 2019 | Joe Furshong","thumbnail":"https://historicmt.org/files/square_thumbnails/0b829fbd96b3f6c9ec159d353eb35f6f.jpg"},"https://historicmt.org/files/fullsize/e1136d5a4e5cd0bcaea284ad00f762d1.jpg":{"id":3381,"mime-type":"image/jpeg","title":"Cannon House","description":"Cannon House. Side view of the house, facing east to southeast on South Ewing Street. Digital photograph. | Montana Historical Society | June-Aug. 2019 | Joe Furshong","thumbnail":"https://historicmt.org/files/square_thumbnails/e1136d5a4e5cd0bcaea284ad00f762d1.jpg"},"https://historicmt.org/files/fullsize/d400b2bcc1f2662156dd9eeb25c4916a.jpg":{"id":3382,"mime-type":"image/jpeg","title":"Cannon House","description":"Cannon House. Front view of the house, facing south to southeast on East Broadway Street. Digital photograph. | Montana Historical Society | June-Aug. 2019 | Joe Furshong","thumbnail":"https://historicmt.org/files/square_thumbnails/d400b2bcc1f2662156dd9eeb25c4916a.jpg"}}}