A lot of them will be generic, and can be gotten from just any bicycle store. The special parts, like fenders, chain case ASO, you'll have to look in Craigslist, ebay, yardsales, flea markets and such.
I have been looking for information on Monarch bikes, but have not found any. Mine is from around WWII, so maybe the company changed names.
First you need to know the brand. It could be a MONARK or a SILVER KING, etc. (Just like Pontiac and Chevrolet are both made by GM, but one is one, the other is the other). Then you need to know the model. For example, there were at least 20 models of Monarks and Silver Kings in 1955, so that's about 40 different bicycles in all. You need to know which of these is yours. Try www.NBHAA.com has ever Monark and SIlver King catalogue and knows evertything there is to know about these bicycles. The bicycles in question would have to be "MONARK", not "Monarch" which was another company that did not make Silver King. Contact www.NBHAA.com which has all original Silver King and Monark information. Be sure to read and follow instructions in the FAQs section for getting IDs done.
A tilapia is silver with orangeish parts around the end of it's tail and it's belly
They are in different Harley families, so no. With some parts, you can get a road king look, but you can't turn it into a road king. If you wanted a road king, you should have gotten one
That date features a portrait of King George VI on one side, and a sailboat on the other.
Look for the Silver Lining was created in 1919.
a fish that is silver
Curium is found to look like silver because it is silver in colour
They have a silver back.
Silver
green on the top and silver on the bottom.
a cat may look at a king