Complex sentence: Additionally, there are also organizations affiliated with Freemasonry that admit both Master Masons and non-Masons who have some relation to a Master Mason, such as the Order of the Eastern Star and the Order of the Amaranth.
Split into simpler sentences: Additionally, there are also organizations that are affiliated with Freemasonry that admit both Master Masons as well as non-Masons who have some relation to a Master Mason. These include, but are not limited to, the Order of the Eastern Star and the Order of the Amaranth.