Agnes Bertha Marshall was a celebrity cook during the second half of the 1800s, and wrote four cookbooks with many illustrations. She was particularly known for her work with chilled desserts, and is credited with inventing the first portable, edible ice cream cones (which she called cornets).
Alexis Benoit Soyer was a famous chef and food author in Victorian England. He was a household name, and even often the subject of fun, if only owing to his penchant for flamboyant clothing that included a red velvet beret.
Anthimus is known in the food history world as author of De observatione ciborum (Observations about food), written either shortly after 511 AD, or sometime around 526 AD. Some people like to hype this as the first French cookbook, but in fact, that's a wild stretch -- it's far more accurate to say that it's the last cookbook to come out of the Western Roman Empire.
Archestratus was a Greek writer who lived around 350 BC, on the island of Sicily just off the boot of the Italian peninsula. Though not a cook himself, he seems to have been a gourmand and a lover of good food and eating.
St Patrick's Day is a day to celebrate all things Irish. As a major festival, it was big first in America before it was in Ireland -- just as Cinco de Mayo is coming to be a bigger deal now in America than it is in Mexico.