Check out Jac. P. Thijsse's haircuts throughout his career:
Jac. P. Thijsse had many different hairstyles during his lifetime. He became famous as a world-class botanist and teacher. Nevertheless, the Dutch conservationist was particularly known for his unique looks and his adorable character. Before his demise at the age of 80 he was frequently featured in the press due to his superb hair. Check out Jac. P. Thijsse's former and current looks in the image gallery right here:
© J.Anacht / cc-by-sa-3.0
© A. Bakker / cc-by-sa-4.0
© The original uploader was Roepers at German Wikipedia / cc-by-sa-3.0