Question: Who did Indianapolis-born drummer John Von Ohlen work with twice in the 60s?

Context articles: John von Neumann Center
Downtown Blues
Von Neumann paradox
John von Neumann (sculpture)
John Von Ohlen
John von Neumann Award
List of things named after John von Neumann
Blue Wisp Big Band
Fredelsloh
Dave Von Ohlen

The John von Neumann Center (JVNC) was one of the five pioneering US supercomputer centers created by the National Science Foundation (NSF), established in 1985.
 The JVNC was the only national center to use the cryogenic ETA10 supercomputer.
 Named for John von Neumann, the Center was located in Plainsboro Township, New Jersey at Princeton University and operated by The Consortium of Scientific Computing, Inc. an organization of 13 institutes from several states.
The Grammy-nominated Downtown Blues is Steve Allee's second album.
 This album contains music from the John Von Ohlen, Chuck Carter and Steve Allee Big Bands.
In mathematics, the von Neumann paradox, named after John von Neumann, is the idea that one can break a planar figure such as the unit square into sets of points and subject each set to an area-preserving affine transformation such that the result is two planar figures of the same size as the original.
 This was proved in 1929 by John von Neumann, assuming the axiom of choice.
 It is based on the earlier Banach–Tarski paradox, which is in turn based on the Hausdorff paradox.
John von Neumann, also known as John von Neumann Gargoyle and Portrait Head of von Neumann, is an outdoor 1987 copper sculpture by Wayne Chabre, attached to the exterior of Deschutes Hall on the University of Oregon campus in Eugene, Oregon, United States.
John Von Ohlen (born 13 May 1941 Indianapolis) is an American jazz drummer, bandleader, and recording artist, widely known as having been the drummer for Woody Herman in 1967 and 1969, then with Stan Kenton from 1970 to 1972.
The John von Neumann Award, named after John von Neumann is given annually by the Rajk László College for Advanced Studies (Budapest, Hungary), to an outstanding scholar in the exact social sciences, whose works have had substantial influence over a long period of time on the studies and intellectual activity of the students of the college.
 The award was established in 1994 and is given annually.
 In 2013, separately from the annual prize, Kenneth J. Arrow was given the Honorary John von Neumann Award.
This is a list of things named after John von Neumann.
 John von Neumann (1903 – 1957), a mathematician, is the eponym of all of the things (and topics) listed below.
Founded in January, 1980 by drummer John Von Ohlen and trumpeter Don Johnson, the Blue Wisp Big Band got its start in and its name from the late Blue Wisp Jazz Club.
 Von Ohlen, a native of Indianapolis, moved to the Cincinnati area after many years on the road playing with world class jazz orchestras, most notably those of Stan Kenton and Woody Herman.
Fredelsloh is a village in Lower Saxony in Germany close to the town of Northeim.
 The town is historically agricultural, but today derives much income from its traditional pottery shops.
 The village is centred on a very large church, which was formerly a mediaeval nunnery.
 The von Ohlen family historically owned much of the land in and around the village, and still has a strong presence in the area.
David Von Ohlen (born October 25, 1958 in Flushing, New York) is a former professional baseball pitcher.
 Von Ohlen pitched in all or part of five seasons in Major League Baseball from 1983 through 1987.
 He appeared in 181 Major League games, all in relief.