| Owner | Count | 1.
| Horace Rackham Educational Memorial Building, Detroit, Michigan | 2 | 2.
| Horace White Park, Beloit, Wisconsin | 1 | 3.
| Horan, James G., Jr., Mr. & Mrs., Scranton, Pennsylvania | 1 | 4.
| Horatio Harris Park, Boston, Massachusetts | 1 | 5.
| Horatio Seymour School, Utica, New York | 1 | 6.
| Horchow, Roger & Carolyn, | 1 | 7.
| Horchow, S. Roger, Mr. & Mrs., | 3 | 8.
| Hord, Clarence, Mr & Mrs, Alpine, Texas | 8 | 9.
| Horel, Asa, | 1 | 10.
| Horiuchi, Paul, Mr. & Mrs., Seattle, Washington | 1 |
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