Hi Patricia,
What you are referring to is not part of the text. If you look at the edit page, you will see:
<div style="float:center; border:0px #ccc solid; color:red; font-size:11px; background-color: #fff; width:200px; text-align: left; height:auto; margin: auto; padding:3px;">Minter at age five[[Image:Prickett-119-6.jpg|200px]]</div>
This specifically identifies the space where the picture will appear and you included, in red, a caption at the top of the picture.
By the way, that code is not supposed to be used any more. If you use the template for an image, you can still control the placement (although not to the extent that (what people here call) "inline css" can. Here is how to use the image template:
{{Image
|file = (filename)
|align = (c, r, or l - will be center if not specified)
|size = (s, m, l, or # of pixels)
|label = (alt text - if included, will be displayed when mouse is over picture)
|caption = (under image - if included)
|wrap = (y or n - if y then text appears to the left or right of picture)
}}
The attributes: align, size, label, caption, and wrap are all optional - you can leave them out if you want. If you use wrap = y then you need to use another template at the end of the text that you want to be next to the picture - that is: {{Clear}}
If you would like me to make the change on 1 of your pictures so that you can see how I did it and use it as an example to do the rest of them, just let me know.