Turns out that Scottie dogs were quite the fashion in the 1930s and early 1940s. Here's a few transfer patterns from the McCall Needlework catalogues that include those adorable pups. I've included the McCall descriptions of the patterns and my guesstimate as to the date of each pattern.
The earliest one I've seen is McCall 50 from the (late 20's?) early 1930s.
McCall 50: Printed Pattern for Stuffed Animals. Price, 30 cents. These animals can be very cleverly made to look as though they were really coated with fur. The cat and dog illustrated were done with yarn and a machine-craft guide on the sewing machine, using unbleached muslin for the foundation. Full directions given. Similar effects can be obtained by using fur cloth, terry cloth or bath toweling. They make nice cuddly animals for the children to play with. The cat and Scottie can be used as pillows for the porch or boudoir. The cat is 14 x 17 inches; Scottie 15 x 19. The duck is 12 ins high; the dog 10 inches. Make these of calico or terry cloth. Another dog in pattern.
-From the November 1942 McCall Complete Needlework Catalogue
McCall 430 (from c. 1936): Transfer Design for Embroidered Picture "Friendly Neighbors." Price, 35 cents. This appealing picture will delight anyone with a weakness either for Scotties or for Colonial doorways wreathed in rambler roses. The colors of the cottons in which it is to be worked are beautifully blended. French knots for the roses, straight stitches for the shutters, single stitches for the dogs, etc. For 6-strand cotton on light cream linen, medium fine. Color chart and leaflet. Design, without mat, fits a 9 x 12 inch frame.
-From the August 1940 McCall Complete Needlework Catalogue
McCall 517 (from c. 1937): Transfer Design for Scrap Bag Gifts. Price, 25 cents. All sorts of fascinating pot holders with new ideas. The carrot and bird designs are stuffed with cotton--making them look very real. The glove pot holder is grand for pulling the roast out of the oven. The elephants and morning glories are nice in pairs. For those who crochet we've also included a simple design. And there's that impressive rooster twine holder to be made of felt or oilcloth. 12 different designs.
-From the August 1940 McCall Complete Needlework Catalogue
McCall 622 (from c. 1938): Transfer Design for Felt Crafts. Price, 25 cents. With this fascinating felt craft pattern, you can make no end of lovely gifts in bright colored felts. Very easy to handle--no unwieldy hems or edges to felt! You just stamp and cut the design from the felt and finish edges with pinking or cover them with wool stitches. There are belts, bags, dangles for lapels, pin cushions, trimming motifs, etc. (25 designs).
-From the August 1940 McCall Complete Needlework Catalogue
McCall 653 (from c. 1939): Transfer Design for Scotties in Cross Stitch for Chair Back Set or Pillow. Price, 25 cents. The amusing antics of these cunning little Scotties add a touch of gayety to even the decorous room. The design can be worked in black or one color on natural, cream, ecru, white or oyster white linen in six strand cotton, pearl cotton No. 5 or fine English crewel wool. Crosses 8 to the inch. One chair back design, 14 and 1/2 x 16 and 3/4 inches and two chair arm designs 8 and 1/2 x 14 and 1/2 inches. Suitable for pillow.
-From the August 1940 McCall Complete Needlework Catalogue
McCall 728 (from 1939): Transfer Design for Scottie Tea Towels. Price, 25 cents. Leave it to the Scotties! They've donned their aprons--very doggy ones at that--and they're taking charge of the kitchen. These six helpers having nothing slow about them. In no time they are done--straight stitches and outline make them very rapid. Gay strand cottons keep them lively. Six designs about 8 inches high and 5 and 1/2 to 7 and 1/2 inches wide.
-From the November 1942 McCall Complete Needlework Catalogue
What? No Scottie dog embroidery patterns from 1940?? So sad....though, maybe I'll just adopt this next one as an honorary 1940 McCall Project pattern (I'll have to find it first..):
McCall 943 (c. 1941): Transfer Design for Scottie Motifs for Outline Stitch. Price, 25 cents. With his Scotch hat and plaid coat, Scottie is a gay figure and supplies an amusing decoration for all sorts of household articles. There are sizes for children's clothes, towels, pillows, laundry bags, curtains, crib covers, etc. Best of all, Scottie gets done in quick time. Those easy outline stitches, you know! For the different sizes, see below.
-From the November 1942 McCall Complete Needlework Catalogue
I also found this lovely cardigan with Scottie dogs embroidered on the button placket in the August 1940 Vogue magazine. How cute is that??
-From the August 1940 Vogue Magazine; the last photo of mother, child and Scottie via Kymbeee on Pinterest