Most folks don't know how close Lyndon Johnson and J. Edgar Hoover were professionally, socially and physically. Lyndon Johnson and his buddy FBI J. Edgar Hoover lived 171 feet apart for 18 years from 1943-1961.
I think that Lyndon Johnson and J. Edgar Hoover were deeply involved in the JFK assassination. They may have not known all the details such as the CIA was going to frame US intelligence agent Oswald and use that to promote an invasion of Cuba, but I think they were privvy to the assassination plans of John Kennedy. Both LBJ and Hoover were very tight with Texas oil barons Clint Murchison, Sr. and H.L. Hunt who in turn were tight with high level US intelligence and key elements of US military.
Lyndon Johnson lived 174 feet away from J. Edgar Hoover for 18 years from 1943-1961 You can google map the distances of the addresses. Hoover's original address name was 4126 30th PL NW, but he changed it because his mail kept getting mixed up with the family at 4126 30th St, hence his new address number of 4136 30th PL NW - just 3 houses down and across the street from the Johnsons.
LBJ lived in a brick colonial at 4921 30th Place NW, Washington D.C. 20015, a few blocks off Connecticut Avenue in northwest Washington. The house had an attic, a
basement, and a large porch. J. Edgar Hoover lived across the street, 3 houses away from the direction of D.C., at 4136 30th PL NW Washington D.C. 20015
D.C. from 1938 until 1972. That is 171 feet, a little over half a football field away.
LBJ moved to another larger home - 4040 Fifty-second Street NW - after he was inaugurated as Vice President. http://maps.google.c...ps?hl=en&tab=wl
LBJ bought his first home in 1943 for $18,000. It sold for $1,310,000 in 2005.
From p. 78 of LBJ: Mastermind of JFK's Assassination:
Johnson's home for twenty years was in a quiet, exclusive neighborhood
in Northwest Washington, nestled in the four blocks between Connecticut
Avenue and Rock Creek Park at 4921 Thirtieth Place. Among his neighbors
there were J. Edgar Hoover (across the street), Fred Black (next door), Bobby
Baker (the next street), and the "King" of Washington lobbyists, Irving
Davidson (around the block). In 1961 Johnson bought the mansion called
"The Elms" owned by Washington socialite Pearl Mesta-the "hostess with
the mostess [sic]" known for her lavish parties featuring artists, entertainers,
and Washington political figures, at 4040 Fifty-second Street NW-when
he became vice president. Within the next several months, Baker and
Black both sold their houses and moved next to the Johnson's so they could
continue to be neighbors again: "On one side was [Baker's] friend and business
partner Fred Black. On the other side was his longtime mentor, Lyndon B.
Additionally, J. Edgar Hoover used to walk his dog often with Lyndon Johnson and Hoover was also a frequent guest for Sunday brunch at the Johnsons with other luminary politico bachelors such Sen. Richard Russell of GA (LBJ's mentor in the Senate) and House Speaker Sam Rayburn (LBJ's mentor in the House for many years and who helped him strong arm the VP spot from Kennedy at the 1960 Democratic convention.)
A young Bill Moyers was an attendee at one of the Sunday brunches in the mid 1950's. Moyers spoke about that at his eulogy of Lady Bird Johnson in 2007:
(Go to YouTube and search "Bill Moyers Lady Bird Johnson")