I've had a bee in my bonnet for dressing up "old-fashioned" style for about as long as I can remember. Now as a grown woman, when my friend says that the Greater Bay Area Costumer's Guild is hosting an 1830's picnic at Ardenwood Farm in June, I can't help but jump at the opportunity.  At this point, I've finished some of the undergarments (Shift and Drawers) and started on my Regency Long Stays.  In doing some research, I found  that during the 1830's, ladies were still wearing their long "stays" or transitioned to slightly curvier long stays and haven't quite evolved into the corsetry of the later 1800's.  The pattern for these "stays" came from Redthreaded and the fit is spot on, with very little alteration.