May I also suggest that you name your references if you are going to use the same one more than once? I believe this will also cause a suggestion when you create a duplicate. Your first use of the source should look like this:
<ref name='Hyskell'>Hyskell, Ira D. 1958. Early Heiskells and Hyskells with a Genealogical Table of the First Seven Generations in America. New York City, p 29</ref>
Then subsequent use of the same source will use:
<ref name='Hyskell' />
That way, the source will only appear once in the list of references at the bottom of the page, but will be linked to each use. It is more correct and looks better.
While we're here (and I am a bit of a nitpicker, sorry not sorry), a better source will include the publisher and date, where you found the source if it is hosted online, a link if online, and the date you accessed it online:
Hyskell, Ira D. Early Heiskells and Hyskells with a Genealogical Table of the First Seven Generations in America, New York City : n.p., 1958; digital images, Internet Archive (https://archive.org : accessed June 2023); citing pg. 29 https://dn790003.ca.archive.org/0/items/earlyheiskellshy00hysk/earlyheiskellshy00hysk.pdf
Then, because I am a weirdo and like "pretty" urls, I usually do this inside the parentheses:
([https://dn790003.ca.archive.org/0/items/earlyheiskellshy00hysk/earlyheiskellshy00hysk.pdf https://archive.org] : accessed June 2023)
If you notice I put a blue thingy in the link, this is a space. If you use the brackets to make a "pretty" url, it will only display what comes after the blue space. I know you probably don't care about all this information, but someone else reading this might.