McPherson Mayer Farms LLC dba Proteus Wines McPherson Mayer Farms LLC dba Proteus Wines Search | Advanced Search | New Members | Coupons and Discounts | All Categories Restaurants, Food & Beverages >> WINERIES McPherson Mayer Farms LLC dba Proteus Wines 21360 SW Hillsboro HwyNewberg, OR 97132 | map | directions 215-495-5940 Visit Site New Member Connect With Us Send a message to: McPherson Mayer Farms LLC dba Proteus Wines Your Name: Your Email: Subject: Message: (Date: 4/24/2025) If your business isn't here, contact us today to get listed!