David McGraw, from the McGraw-Hill publishing company founding family, built a house in Osterville on Cape Cod to store his collection of 68 motorcycles.

McGraw Hill, one of the country’s biggest textbook and education publishers, was founded by David’s great-grandfather, James H. McGraw. David’s father and grandfather worked for the company, but David chose a different path. The New Jersey native moved to Cape Cod in 1980 and opened a business restoring antique cars, Classic Coachworks

A lot of his motorcycles were on exhibit in 2019, Art On Two Wheels, on Long Island, including a 

1915 K Board Tracker, 

1927 Pea Shooter, 

1927 Hill Climber, 

1928 JDH, 

1936 EL Knucklehead, 

1949 Flat Track, 

1950 Panhead, 

1966 CRS Scrambler, 

1967 XLRT Lance Weil, 

1968 Drag Bike, 

1970 XRTT 750 Daytona Roadracer, 

1970 XLCH Land Speed Streamliner, 

and a 2005 Destroyer Drag Bike

https://www.mansionglobal.com/articles/a-publishing-heir-built-a-home-to-show-off-his-motorcycle-collection-now-its-hitting-the-market-91a8d4dc

https://www.barnstablepatriot.com/story/entertainment/2019/09/13/fast-company/2801997007/

https://www.antiquesandthearts.com/art-on-two-wheels-at-cultural-center-of-cape-cod/