I share your interest in History, and especialy that of eastern Arkansas. I have found that tracing your family roots involves a lot of historical research quite apart from the genealogy angle, because knowing who your ancestors are is only part of the story. Often, knowing why your ancestors "did what they did" is just as important, and that requires knowing the times in which they lived.
But on to the Canards. I do know that a large number of Canards were, and still are,
living in the northern part of Jackson County and the southern part of Lawrence County, AR. It is a bit confusing to find so many spellings of the name. My particular interest is in one Jim Canard (or Kinnard) who was the son of Sarah Jane Canard (later Bennett). Sarah Jane was my GG Aunt, and family lore has it that her Canard husband was killed in the Civil War. If we have it right, she was born about 1846 or so in Missouri, and died about 1949 at the ripe age of 103. Dates may be off a couple of years each way.