On October 30, 1916, Baber testified to preserve the Indiana Sand Dunes.
On October 30, 1916, Zonia Baber took a bold step by testifying in court to argue for the preservation of the Indiana Sand Dunes. Her compelling argument for establishing the dunes as a National Park highlighted her deep commitment to environmental conservation. This court appearance was a significant reflection of the early conservation movement in America, marking Baber not just as an educator, but as a vocal activist in the nascent field of environmentalism. This action by Baber was crucial in setting a precedent for the relationship between scientific understanding and natural conservation policies.