"Harry Ellis Dickson" is a unique name, and finding synonyms for it may pose a challenge. However, we can explore alternatives by breaking down the name into individual components. "Harry" can be substituted with similar names such as "Henry", "Harold" or "Harrison". "Ellis" could be replaced with "Elijah", "Elliott" or "Elias". Lastly, "Dickson" could be interchanged with "Dixon", "Dickenson" or "Dickens". Although these suggestions may not encompass the exact name, they offer alternative variations that might be used as synonyms when referring to individuals with similar sounding or related names.