|
| Horizontal (normal) ... ca. 1947 |
| John Travlos ... PD 94 ... 1948 |
| south 2160 Horizontal (normal) ... August 1975 |
| M.R. Jones ... PD 1026 Horizontal (normal) ... 1958 |
| southeast Horizontal (normal) ... April-May 1965 |
| 361 Horizontal (normal) ... 31 Jul 1954 |
| W.B. Dinsmoor, Jr ... PD 1178 PD 1179 Horizontal (normal) ... 1961 |
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