56 Ayres 1958; Hall 1964, 173.
57 Keyhoe 1960, 218.
58 Jacobs 1975, 150; Clark 1992, 274.
59 Keyhoe 1960, 166-167, 182-184.
60 Keyhoe 1960, 189-190.
61 Keyhoe 1960, 191.
62 Hall 1964, 110.
63 Keyhoe 1960, 199, 232-233; Vallee 1965, 156.
64 Keyhoe 1960, 30, 208.
65 Keyhoe 1960, 219-227.
66 Jacobs 1975, 160.
67 Keyhoe 1960, 258; Clark 1992, 293; 1998, 518.
68 Vallee 1969, 270; Hall 1964, 137.
69 Hall 1964, 137; LePoer Trench 1966, 43-44; Clark 1992, 326-330.
70 Hall 1964, 137; Vallee 1969, 271; Edwards 1966, 62, 258; Lorenzen and Lorenzen 1976, 151.
71 Edwards 1966, 95-96.
72
73 CIA 1958a; Vallee 1969, 273.
74 Hall 1964, 137; Vallee 1969, 272.
75 CIA 1958b; Fawcett and Greenwood 1984, 136-137.
76 Sanderson 1967, 29-32; Hynek 1977, 44; Clark 1992, 229-230; Hall 1964, 137.
77 Keyhoe 1960, 239; Jacobs 1975, 160-162; Clark 1992, 275; Flammonde 1976, 341.
78 Clark 1992, 274-275; Jacobs 1975, 163-166.
79 Jacobs 1975, 164-165.
80 Good 1988, 284.
81 Keith 1997, 91-93; Cannon 1989.
82 Weiner 1990, 36.
83 Flammonde 1976, 341; Clark 1992, 274-275.
84 I am indebted to the assistance of fellow UFO researcher Val Germann, whose insights and research were invaluable in writing this section.
85 From FBI file on J. Allen Hynek, http://www.cufon.org/cufon/fbihynek.htm.
86 Vallee 1992a 87, 110, 408-410.
87 Clark 1998, 395.
88
89 Jacobs 1975, 173-174.
90 Edwards 1966, 85.
91 Keyhoe 1960, 15, 247-248.
92 Keyhoe 1960, 27-36; Hall 1964, 137; Good 1988, 284; Tacker 1960, 233-235.
93 Fawcett and Greenwood 1984, 138; Vallee 1969, 274.
94 Edwards 1966, 117-118; Hall 1964, 137; Sanderson 1970, 34-35; Fawcett and Greenwood 1984, 138; Vallee 1969, 275.
95 Vallee 1969, 274; Edwards 1966, 70-71; Vallee 1965, 238.
96 Sanderson 1967, 227-241; Keel 1971, 174; Vallee 1965, 124; Clark 1992, 40-41, 209-210.
97 Lorenzen and Lorenzen 1968, 52-53.
98 Hall 1964, 137, Lorenzen and Lorenzen 1976, 332, Vallee 1965, 201-204; 1969, 276, Hynek 1977, 216, Edwards 1966, 183-185, Randles 1988, 171, LePoer Trench 1966, 155-158, Clark 1992, 177-180, 348.
99 Hall 1964, 138; Keyhoe 1960, 250-252; LePoer Trench 1966, 44-45; Vallee 1969, 276.
100 Edwards 1966, 258; Fuller 1966a, 237; Vallee 1969, 276-277;
101 Jacobs 1975, 151; Clark 1992, 273; 1996, 408.
102 Keyhoe 1973, 40-44, 48-49; Hall 1964.
103 Jacobs 1975, 168-170.
104 Keyhoe 1960, 252-254.
105 Keyhoe 1960, 258-260; Clark 1992, 293.
106 Ruppelt 1960, 243-277.
107 Clark 1992, 293.
108 U.S. Air Force 1959; Edwards 1966, 65, 315; Hall 1964, 108, 138; Good 1988, 288; Lorenzen and Lorenzen 1976, 247; Blum 1990, 65; Flammonde 1976, 341-342.
109 Weiner 1990, 5; Good 1988, 299; Wise and Ross 1964, 325.
110 Powers 1979, 184; Thomas 1989, 223.
111 Marks 1979, 150-151; Thomas 1989, 194, 228.
112 Wise n.d. 23; 1976, 223.
113 Hunt 1991, 220.
114 Summers 1994, 311; Wise and Ross 1964, 24; Powers 1979, 130; Weiner 1990, 36.
115 Lorenzen and Lorenzen 1976, 3, 251; Clark 1992, 13.
116 Clark 1996, 410; Jacobs 1975, 174; Flammonde 1976, 342.
117 Hall 1988, 179.
118 Good 1988, 289; Steiger 1976, 14.
119 LePoer Trench 1966, 45-46; Hall 1964, 138.
120 CIA 1960.
121 Keyhoe 1960, 248, 257; 1973; Keel 1971, 193; Blum 1990, 103, 106; Edwards 1966, 152-153.
122 Wise and Ross 1964, 131.
123 Wise and Ross 1964, 26-27; Powers 1979, 186-187; Summers 1994, 312-315.
124 Lorenzen and Lorenzen 1976, 152; Vallee 1969, 278.
125 Edwards 1966, 86.
126 Hall 1964, 138.
127 LePoer Trench 1966, 46.
128 Hall 1964, 138.
129 Vallee 1969, 280.
130 Jacobs 1975, 176-180; Hall 1964, 173; Clark 1996, 410.
131 Stringfield 1977, 167.
132 Edwards 1966, 229-230, 317; De Landa 1991, 199; U.S. Air Force n.d.b.; Hall 1964, 108; Keyhoe 1973, 138-139; Randles 1988, 60; Flammonde 1976, 342.
133 Jacobs 1975, 178; Hall 1964, 138; Clark 1996, 409.
134
135 Keith 1997, 220; Powers 1979, 184; Thomas 1989, 231; Marks 1979, 81; Wise 1976, 220.
136 Powers 1979, 142, 187; Wise and Ross 1964, 30-33.
137 Weiner 1990, 37-38.
138
139 Wise and Ross 1964, 63-71.
140 Marks 1979, 212; Thomas 1989, 232; Wise and Ross 1964, 199; Powers 1979, 167, 175, 187; Barron 1974, 201.
141 Summers 1994, 326-327, 334; Powers 1979, 186; Donner 1980, 195-203; Wise and Ross 1964, 102, 229; Blum 59.
142 Edwards 1966, 205-206.
143 Hall 1964, 138-139.
144 Clark 1996, 168-175; Vallee 1969, 24-25, 281.
145 Sanderson 1970, 35; Lorenzen and Lorenzen 1968, 51; Vallee 1969, 281.
146 Hall 1964, 139.
147 Vallee 1969, 282.
148 Vallee 1969, 282.
149 Sanderson 1970, 35-36.
150 Jacobs 1975, 178; Edwards 1966, 75.
151 Hall 1964, 108.
152 Keyhoe 1973, 92-93; Hall 1964, 139.