Lindsay Ribar is an author whose birth date is not provided in the source material.
Information regarding the author Lindsay Ribar is not present within the provided text, which details historical events and notable births occurring on January 21st throughout various years. The extract focuses on significant occurrences such as the founding of the Anabaptist Movement in 1525, the execution of Louis XVI in 1793, and various modern events including the launch of the USS Nautilus in 1954 and the beginning of Concorde's commercial service in 1976. It also lists numerous individuals born on this date, spanning from historical figures like Alexander, Prince of Scotland, to artists and politicians. Without specific biographical details about Lindsay Ribar, it is impossible to construct a relevant author biography.