The Carved and the Directional Curl

(Click on the images to see larger versions.)
Source: American Hairdresser Beauty Shop Compendium 9th Edition.

Sideburns

(Click on the image to enlarge.)

Source: Practice and Science of Standard Barbering, ⓒ 1938-1958

Pin Curls

(Click on the images to get a better view.)
Source: Practice and Science of Standard Barbering, ⓒ 1938-1958

Midsummer Night Dreams

(Click on the image.)
Source: American Hairdresser, June 1946

Link: Retro Hairstyles for Dummies

Once again, another great link:
Retro Hairstyles for Dummies

I love that Sari has the updos from the Hairdo Handbook that we have here, but in German. (She has also translated them.)

(The English ones on this blog are here.)

Feather Halo

(Click on the image to open a larger version in a new window.)
Source: Modern Beauty Shop, June 1942

Drene Presents Gracious Lady

(Click on the images to see larger versions.)
Source: American Hairdresser, June 1946

Popular Hairstyles for Young Girls

(Click on the images to get a better view.)
Source: Practice and Science of Standard Barbering, ⓒ 1938-1958

Basic Short Cut for Fine Textures

(As usual, click on the images to open larger versions in new windows.)
Source: Modern Beauty Shop, July 1949

It's the Cut That Counts

(If you click on the images you can see larger versions. I highly recommend it.)

Source: American Hairdresser, June 1946