While Shirlie's archives are full of photographs of her and by her, I found these three that show her at work. Three camera Shirlie is the classic photo of her. But the two with her at the photo enlarger are showing what she actually did after the flash!
Like so many photographers of her era -- before digital photography and PhotoShop, she would manipulate the image on the negative by coloring out certain areas, cropping the image and even cutting out silhouettes and placing them in different backgrounds. Similarly, she used the tools of the trade to "dodge" the image or intensify the exposure contrast in different areas to create the levels of light and dark she wanted. She also had an array of masks to frame the image in different shapes or to fade out the edges for a softer effect.
These photos are from around 1960 and were taken in her studio on First Street in San Jose.