| Name ▲ | Chapter number | Status | |
|---|---|---|---|
| Illinois Central | 178 | Active | |
|
Address
Mailing Address |
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| Illumination | 5 | Active | |
|
Address
Mailing Address |
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| Industry | 327 | Active | |
|
Address
Mailing Address |
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| Integrity | 997 | Active | |
|
Address
Mailing Address |
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| Ionic | 312 | Active | |
|
Address
Mailing Address |
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| Ipava | 213 | Active | |
|
Address
Mailing Address |
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| Irving | 455 | Active | |
|
Address
Mailing Address |
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| Isaac Cutter | 1073 | Active | |
|
Address
Mailing Address |
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