It's similar to signing a check. You'll see a line for the purchaser's signature, usually on the front of the money order near the bottom.Put the name of the person or business to receive the money order that you are paying. Sign the line on the front of the money order where it asks for the purchaser's signature. Leave the endorsement line on the back of the money order blank. 1. Buy a money order for the desired amount. 2. Fill in the "Pay to the Order Of" line. 3. Find the person (see the sample for Christopher Kidd). Form) or may be filled out online and printed out ready for signature and filing (fillable form). Redwood Credit Union has been a trusted, and community focused credit union since 1950.