Two, non-blinking white lights perform a high speed, 75-degree ascent.

My age at the time: 14. Location of sighting: rural Bancroft, WI. Date and time: early October, 1968, about 8:00 PM. We sighted 2, non-blinking white lights low on the visible horizon, S.S.E. The lights moved north together at the speed of small planes.  When they reached a N.N.E. position, both objects very suddenly performed a 75-degree ascent at an extremely high rate-of-speed, and disappeared almost instantly. Total witnesses: 1 adult and 3 to 4 boys. Sighting never reported.
((FOLLOW-UP ADDENDUM FROM SAME WITNESS))
My age at the time: 14. Location of sighting: rural Bancroft, WI. Date and time: late October, 1968, about 8:00 PM. A white, non-blinking light was first sighted low on the visible horizon, S.E., about 1-and-1/2 to 2 miles distant and moving slowly from east to west. The light traveled to a position due south of us (still 1-and-1/2 to 2 miles distant) and stopped. Then light then grew larger and brighter, and we had the impression it was moving north toward us. Suddenly, it vanished. At the same instant, another light (or the same light - changed in appearance) appeared just above the tree line, about 200 feet S.S.W. of us. This was a steadily-glowing orange light, that revolved slowly around its vertical axis, revealing a consistent "gourd" shape - about 60 to 80 feet in length. It continued hovering and slowly rotating for about 2 minutes, and then slowly descended behind the tree line. The light was not visible after its descent. We then heard something run along (inside?) the tree line, from the position where the light descended to a position due south of us. We immediately left the area. At no time did the orange light emit any sound, heat, or other sensation. Total witnesses: 2 adults (my father and my junior-high English teacher) and 6 to 8 boys (my classmates and my younger brother). Sighting never reported.
Date is approximate.  PD