BM Laughlin Book Updates 1838

The comparison of  The Lytle-Holdcamper List and the BM Laughlin Book continues.  The comparison now extends through the year 1838 – some 440 steamers built at Pittsburgh. 

The link to the spreadsheet is located on the page:  Laughlin v Lytle-Holdcamper .  Since I will be updated the spreadsheet periodically, I want only one link to the data.

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