Thank you so much for taking the time to prepare this lesson for me. It will take me a little bit of time to work through this because I'm so new to the software and I'm clearly not all that techie. I will let you know how it turns out for me.
Again, thank you for generously sharing your knowledge and time.
I should like to offer another alternative for your consideration for this project.
1. Open the picture file
2. Go to Image menu>resize>canvas size
3. This opens a dialog where you can extend the canvas below the picture, as per your requirement. In the dialog you can read the current size, and enter a number for the new size. Let us assume that the current height is 4", and you need another inch to add the names of the children. Enter 5 " for height in the new size field. Uncheck "Relative", and click on the anchor point in the 12 o'clock position. Select the color for the canvas extension, then ok it.
4. Activate the Horizontal type tool and enter the names using an appropriate font and font size with contrasting color.