Woodward has been in business since 1866 when they made wood furniture and caskets. They began to manufacture outdoor metal furniture in the 1930s. Fires, storms, and wars have interrupted production. During World War II the company produced truck and tank parts for the war effort. They resumed production of outdoor metal furniture in 1946.
The best way to find an appraiser is to contact either the American Society of Appraisers or the Appraisers Society of America. Their online site can help you locate a professional in your area. Be aware that the service is not cheap and can run upwards of $100.00.