TerryJ,
I think your 1929 is really a 1930 "second half". If my memory is right the first number "6" is the assembly plant, in this case it's Oakland (Flint is #1, Tarrytown is #2...}. The next two letters are the year/series, "LS" indicates 1930 "second half"..."LR" is 1930 first half and "LQ" is 1929..."LT" is first half 1931.
I can't help with the rest of the fire wall tag numbers without some further research.
Your engine also says it's a 1930. Serial numbers for 1929 are from #1 thru 1265800. 1930 are from 1365366 thru 2100284 (1265801 thru 1365365 were not used in production). 1931 goes from 2100285 thru 2951552.
Hope this helps...
Mike B
