| [CORRESPONDENCE FROM MONROE R. GOODMAN TO RALPH A. LINCOLN REGARDING A PRINT OF FOOTAGE] |
|
| [ILLUSTRATION AND NOTES REGARDING SETTING POSTS] |
|
| [ILLUSTRATION REGARDING A BLUEPRINT] |
|
| [BLACK AND WHITE PHOTOGRAPH OF A CONCRETE TOWER] |
|
| [CORRESPONDENCE FROM RALPH A. LINCOLN TO EDWIN J. MESSINGER REGARDING AN UPCOMING VISIT OF WEST POINT CADETS] |
|
| [REPORT] SPECIFICATIONS FOR HIRED LABOR WORK, INSTALLATION OF MACHINERY EXCEPT GATES AND ANCHORAGES, NEW DAMN NO. 9, ALLEGHENY RIVER |
|
| [REPORT] REGULATIONS GOVERNING PROCEDURE AT LOCK & DAM NO. 9, ALL'Y [ALLEGHENY] RIVER |
|
| [CORRESPONDENCE FROM JAMES A. WAUGH TO RALPH A. LINCOLN REGARDING A REQUEST FOR A LETTER OF RECOMMENDATION] |
|
| GENERAL ORDERS NO. 70 |
|
| [CORRESPONDENCE FROM T. A. WEADOCK TO RALPH A. LINCOLN REGARDING CREDIT ELIGIBILITY] |
|
| [NOTE REGARDING ESTIMATES] |
|
| [NOTE REGARDING ESTIMATE DIMENSIONS AND BUILDING NEEDS] |
|
| [BROCHURE] CONEMAUGH RIVER RESERVOIR |
|
| [NOTES REGARDING DIRECTIONS] |
|
| [CORRESPONDENCE FROM R. A. LINCOLN TO R. T. WARD REGARDING A LETTER OF INSTRUCTIONS] |
|
| [CORRESPONDENCE FROM J. G. CHRISTIANSEN TO MAJOR GENERAL WALTER L. WEIBLE REGARDING PRAISE FOR RALPH A. LINCOLN] |
|
| [ILLUSTRATION AND NOTES REGARDING BUILDING BLUEPRINTS] |
|
| [FOLDER CONTAINING PERSONAL DOCUMENTS OF RALPH A. LINCOLN] |
|
| [NOTE REGARDING FILE 201 FOR CAPTAIN RALPH A. LINCOLN] |
|
| [REPORT] PERSONAL REPORT FOR APRIL 1937 [WITH ATTACHMENT] |
|