400 m Individual Medley, Women
| Competition | 1955 USA Swimming National Championships (Outdoor/LCM) |
|---|---|
| Venue |
Los Angeles, CA; Philadelphia, PA
 USA
|
| Held | 12 August 1955 |
| Status | Medal |
| Competitors | 6 |
| Countries | 1 |
Philadelphia, Pennsylvania / John B. Kelly Pool, Fairmount Park / long-course metric (50m)
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Marie Gillett Walter Reed Swim Club |
USA |
6:01.5 | * | |
| 🥈 | Mary Spears Walter Reed Swim Club |
USA |
6:07.4 | ||
| 🥉 | Nancy Simons Chicago Athletic Association |
USA |
6:11.0 | ||
| 4 | Shelley Mann Walter Reed Swim Club |
USA |
6:12.0 | ||
| 5 | Ivanelle Hoe Hawai'i Swim Club |
USA |
6:14.0 | ||
| 6 | Patsy Shumacker Unattached, Norristown, PA |
USA |
6:21.4 |