If you do not have suitable blueprints for at least 2 of the orthographic views, and there is no manufacturer's web site to give you pictures and dimensions, then you must find every available museum photo of said bike, from every available angle, and you may get enough reference to be able to accurately 'guestimate' the dimensions you need. It is possible to model a bike by eye, with no reference blueprints at all.
You could also use relative sizing to help you - where you look for known-size elements within a photo, for example a tennis ball next to a wheel... if you can see the wheel is, say, 7 tennisball widths across, then you know the diameter of the wheel and can base your other measurements off that. If it is for artwork, you may not be held to millimeter accuracy, so you should check if that is necessary with your client.
Lastly, if you do need that level of precision, and you can't find enough photos of the 1909 bike, then you need to find a motor museum that has one, and ask them nicely to go round taking photos and measuring it for you !
CBR