Step 1: Understanding Ebenezer Howard's Garden City.
\nEbenezer Howard, a social reformer, conceptualized the "Garden City" in his 1898 book *Garden Cities of To-morrow*. His aim was to merge the advantages of urban and rural living while eliminating their drawbacks. \n\n \n
Step 2: Population limit.
\nHoward stipulated a maximum population of 32,000 for a Garden City, with the town itself intended to house approximately 22,000 residents. The remaining population was to reside in the surrounding agricultural areas. \n\n \n
Step 3: Matching with options.
\nEvaluating the provided options: \n- 10,000 → Insufficient, not Howard's specified limit.
\n- 22,000 → Correct, aligns with the proposed population for the town center.
\n- 32,000 → Represents the total population including the periphery, not the core Garden City.
\n- 58,000 → Incorrect, not proposed by Howard.
\n\nTherefore, the correct answer is 22,000 persons. \n\n \n
Final Answer: \n\[\n\boxed{22,000}\n\]