The Abraham Lincoln font is a Lost Type font. They sell their fonts based on a “pay-what-you-want” model. What that means, is when you download a font you have the option to donate to the designer of that font, giving you the option to enter “0”. That is why it is listed here on I Heart Free Fonts; it can be a free font. The designers they work with are given the 100% of the donations that their specific font receives, if you feel called to do so.