Ah, found it.
So, I was trying to find a bookmark that had links to software programs that allows users to create 'Typefaces' or 'Fonts' if you prefer. I finally found it and there are several options for you to take when making a 'Typeface' - all require varying degrees of loot and technical proficiency. You would want to have your 'lettering' reference converted into a vector format, and then bring it in to one of the programs listed below. You might be able to bring your reference straight into one of these programs, but I haven't played with any of them to see how easy that might be.
The list of programs comes from the following blog/website : I Love Typography.com
The direct link to the blog-post with the font programs is here :
http://ilovetypography.com/2007/10/22/so-you-want-to-create-a-font-part-1/Here are the programs :
FontLab Studio : WIN/MAC :
http://www.fontlab.comFont Forge : Opensource :
http://fontforge.github.io/en-US/DTL FontMaster : WIN/MAC :
http://www.fontmaster.nlFontCreator : WIN :
http://www.high-logic.com/font-editor/fontcreator.htmlTypeTool : WIN/MAC :
http://old.fontlab.com/font-editor/typetool/ Fontographer : WIN/MAC :
http://old.fontlab.com/font-editor/fontographer/---
I wanted to comment on scanning handwritten lettering ...
Be sure to check the technical specifications of your scanner to verify it is able to scan in documents higher than 300 DPI, it may sound odd but where I work has several scanners that list the maximum resolution at 9600 DPI in the technical specifications, even though the scanner setting options lists 12,800 DPI as a scanning option. There's a whole argument here just waiting to happen so I won't get too technical about it, but I will leave a few articles that discuss scanning photographs, and you can decide for yourself if you need to scan anything higher than 900 DPI.
1 ) The DPI You Should Be Scanning Your Paper Photographs :
http://www.scanyourentirelife.com/dpi-should-be-scanning-your-paper-photographs/2 ) Scanning Your Photos More Than 300 DPI Will Not Give You More Detail :
http://freescanningtips.blogspot.com/2011/07/scanning-your-photos-more-than-300-dpi.htmlRemember, the web - and by extension any HD device (minus Retina and 4K devices), cannot 'see' the detail you are using with resolutions higher than 900 DPI. If you are doing 'print' or enlarging photographs or hand-lettering, then you might want to consider scanning images higher than 900 DPI.