Some of the methods I've come up with concerning how to draft a shift pattern from your own measurements, and how different shapes will effect the resulting shift. I will be making a followup tutorial which will go into more detail about the 18th century shift specifically.
Other things I've thought of:
-Don't stress it, shifts are pretty forgiving patterns!
-If your mockup sleeve is too tight at the shoulder, try using a larger gusset.
-Make sure the total circumference of your hem is wide enough for your leg movement. You can formulate this by holding your tape measure in a loop around your legs where you want the hem to sit, and decide the minimum circumference you need to be comfortable. Subtract your front and back panel edge measurements, and whatever is left can be divided by the number of gussets.
Regency Shift Measurements: https://www.pinterest.com/pin/367536019593087937/
How to sew 18th century stays: https://youtu.be/krlZjZiPC0g
Other things you might find interesting:
How linen is spun: https://www.youtube.com/watch?time_continue=25&v=Az2VNllZhEE&feature=emb_title
Burnley & Trowbridge Linen: https://www.burnleyandtrowbridge.com/6515.aspx
Late 18th Century Linen Shift: https://www.metmuseum.org/art/collection/search/84369?searchField=All&sortBy=Relevance&when=A.D.+1600-1800&ft=chemise&offset=0&rpp=20&pos=1
1840's Linen Chemise: https://www.metmuseum.org/art/collection/search/82079?sortBy=Relevance&ft=Chemise,+1840–59&offset=0&rpp=20&pos=1
1870's Cotton Chemise: https://www.metmuseum.org/art/collection/search/109179
Find me elsewhere:
Instagram - @mariahpattie
Pinterest - mariahpattie
Spoonflower shop - https://www.spoonflower.com/profiles/mariah_pattie
Myfabricdesigns shop - https://www.myfabricdesigns.com/Artist/mariahpattie/Main
Music:
“Swing with You” by Mica Emory, epidemicsound.com
"Menuet" by Traditional, epidemicsound.com
"Faultless" by Moins le Quartet, epidemicsound.com