Promissory Note - Signatures / Enforceability Question

[Blake Carlile]

Hello!  I'm a private lender and recently received a signed promissory note from the borrower that looks well and good (based my research of all things that should be in a note), but it doesn't have a signature line for me, the lender.  My full name is clearly written in the agreement, but would just signing anywhere at the bottom make the contract legally enforceable?  I trust these folks I'm lending to, but don't have access to an attorney to answer questions over the labor day weekend.  The plan is to wire funds on Tuesday and I just wanted to check with this community to gather thoughts on this.  Thank you!