Hello TNFers thank you for your replies.
To clarify LOTUS Elite chassis 1559 a bit further the handwritten Warren King LOTUS Ledger pages indicate that LOTUS Elite chassis EB1559 a Series 2 Bristol built Elite circa 1961 was sold to an R.J Fuller of the Northampton area in December 1963 with engine number 31 listed.
This car was later advertised for sale by Victor Grimwood then of LOTUS Cars powertrain division in 1970 and sold by him and exported to the USA arriving in the States in 1971 and registered on a Michigan plate for 1971.
It is fitted with an early LOTUS Twin Cam engine serial number "31" and also fitted with what can only be described as possibly a unique E Type inspired metal rear subframe to carry the Elite diff.
The Bob Curl Elite from Kelvedon motors is still in the UK with one of my friends.
The the Bob Curl MODSPORTS Elite Michael Adda race car is a different Elite entirely to chassis 1559 but it is also in the USA having been bought by its present owner in the UK circa mid 1970's.
The MODSPORTS Elite carries an unusual hand made ally chassis plate something like HCBC 01 and this car was created initially by Peter Jackson and completed by Bob Curl before being raced successfully.
I have now also identified quite a few more Twin Cam Elites with the 1558cc Elan Twin Cam engine fitted in period as opposed to the standard FWE Climax engine.
The most well know Twin Cam Elite of course mayh be the David Lazenby 1967 created Elite in which David & Jane went on honeymoon.
Any and all further information is most welcome relating to LOTUS Elite Twin Cam chassis 1559 especially about those LOTUS names who may have been at LOTUS when Elite 1559 was created.