Links to help you out:
<ul>
 <li><a href="https://www.history.com/topics/american-revolution/valley-forge">https://www.history.com/topics/american-revolution/valley-forge</a></li>
 <li><a href="http://www.ushistory.org/us/11f.asp">http://www.ushistory.org/us/11f.asp</a></li>
 <li><a href="https://christianheritagefellowship.com/george-washingtons-prayer-at-valley-forge/">https://christianheritagefellowship.com/george-washingtons-prayer-at-valley-forge/</a></li>
 <li><a href="https://www.thegospelcoalition.org/blogs/evangelical-history/the-faith-of-george-washington/">https://www.thegospelcoalition.org/blogs/evangelical-history/the-faith-of-george-washington/</a></li>
</ul>