December, 2025
Joseph Pilates’ birthday is December 9, 1883. It is widely known that he claimed his birth year as 1880. In an article in Man’s Conquest magazine published in 1955, the author noted that Pilates’ business card read “Joseph H. Pilates (1880-?).” There has been considerable speculation about why he would have lied about his age. Perhaps he wanted to seem older while maintaining the physical appearance of a younger man. Maybe he thought a three-year difference was enough to achieve that deception. The three-year difference also meant he would appear to be older than Clara Pilates, at a time in American history when men were supposed to be older and taller than their wives, as a sign of masculinity.
I always found it odd that he only made this claim about his age in social situations. In other words, when it came to formal documents, he was truthful about his actual birth year. He somehow knew not to cross the line by lying when it came to legal matters.
First photo of his Citizenship petition. Second photo of his World War II draft registration card. Both documents are available on Ancestry.com.
We may never know why he chose to misrepresent his actual age. However, the fact that he did this raises questions about the truthfulness of other details about his life. In my mind, the most significant issue is whether he was legally married to Clara. I am still searching for a marriage certificate and will address this issue in a future blog post. Ongoing research into the details of Joseph Pilates’ life is essential to sort through the stories he and his friends and family have told. With each story, verification of the facts should occur through documentation whenever possible, and by cross-referencing other independent information. There is still so much more to learn about this man who created such an important method that benefits everyone.
Cathy Strack has been practicing and teaching the traditional method of Pilates since 2001. Before her career in Pilates, she was a group exercise instructor and personal trainer. These careers evolved from her desire to incorporate healthy movement into her daily life while working as a licensed mental health counselor. Cathy has written two books, one about Romana Kryzanowska and one about Joseph Pilates. She is considered a leading historian in the Pilates community. This blog is just another way to share some of her research and insight based on her findings.
