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- The ice trade — lake ice by wagon Businesses
- The ice trade — natural ice, then the artificial plant Businesses
- Ignition Park and the Renaissance District — the ground goes back to work Businesses
- Ike Bierwagen: The Factory Game's Ace Sports Players
- The implement record in the tractor age: the plows the tractors pulled Tractors
- The independent thread — Nine Feet Tall , and an animation pioneer Film
- The Indiana Dinosaur Museum — the newest museum Museums
- The Indiana Foundry Company Businesses
- Indiana Landmarks in South Bend: the office that lives in its rescues Historic Preservation
- The Indiana Toll Road: the northern edge, 1956 Main Roads & Corridors
- Indiana University South Bend Schools & Colleges
- Indiana University South Bend — the Public University in the Web Schools & Colleges
- The Indiana Whiskey Company: the city's first documented distillery Wineries & Distilleries
- "Indiana's Oldest Zoo": The Claim Examined Zoo
- The Industrial Architecture — Plants, Breweries and Mills Architecture
- The industrial color line · the foundry, the sewing class, and nineteen men at Bendix Black History
- The industrial families: art at the carriage house Arts
- Industrial Revolution Section
- Influencers & Digital Creators Section
- The influenza autumn of 1918: the toll, from the state board's own tables The Story of South Bend
- Influenza: January 1920, the epidemic the city counted Epidemics & Public Health
- Influenza: the autumn of 1918 Epidemics & Public Health
- The institution as it stands Veterans
- The institutional wave: the city podcasts its own archive Influencers & Digital Creators
- Insull: the line remade Railroads
- The insurance record: two mutuals Fire & Public Safety
- "International": the customs build, 2014–2019 Airports
- Inventors & Inventions Section
- Investigators and organizations: the local record UFO Sightings
- The Irish and the mother parish on Taylor Street Communities
- The Irish Football Network: the network one sportscaster built Newspapers & Media
- Ironhand Vineyard: the county's first documented vines Wineries & Distilleries
- Ironwood and Jackson: the fair buys its home Fairs
- Irwin Press and Rod Ganey — the professors who measured the patient Founders & CEOs
- Isiah Whitlock Jr.: the record completed Notable People
- Islamic Society of Michiana — the Al Noor Mosque Churches & Religion
- The Italian thread: Calabrians who stayed Communities
- IU South Bend's Schurz Library Libraries
- IU South Bend, the Indiana Archives, and the State Library Sources
- IU South Bend: one trust's decade, and the banker's gift that named a school Major Donations
- Ivan Meštrović: the South Bend chapter Artists
- Ivy Tech South Bend — the Working College, in a Studebaker Plant and a Retired High School Schools & Colleges
- The Izaak Walton League: the St. Joseph County chapter Private Clubs