| year |
DMM |
operator |
address |
production |
cumulative |
opening |
depth |
seam |
thickness |
method |
days |
emp
|
| 1935 |
|
Walnut Valley Coal Co. |
Marion |
2,246 |
|
|
|
|
|
ug |
70 |
11
|
| 1936 |
|
Walnut Valley Coal Co., No. 1 |
Marion |
6,110 |
|
|
|
|
|
ug |
153 |
12
|
| 1937 |
L-18 |
Walnut Valley Coal Co., No. 1 |
Marion |
4,606 |
|
|
|
|
|
ug |
138 |
8
|
| 1938 |
|
Walnut Valley Coal Co. |
Marion |
3,881 |
|
|
|
|
|
ug |
135 |
8
|
| 1939 |
|
Walnut Valley Coal Co. |
Marion |
6,173 |
|
|
|
|
|
ug |
207 |
9
|
| 1940 |
|
Walnut Valley Coal Co. |
Marion |
6,270 |
|
|
|
|
|
ug |
195 |
9
|
| 1941 |
|
Walnut Valley Coal Co. |
Marion |
3,468 |
32,754 |
|
|
|
|
ug |
100 |
9
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1942 |
|
Valley Coal Co. |
Marion |
6,218 |
6,218 |
|
|
|
|
ug |
175 |
8
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1943 |
|
Walnut Valley Coal Co. |
Marion |
5,370 |
|
|
|
|
|
ug |
196 |
7
|
| 1944 |
|
Walnut Valley Coal Co. |
Marion |
6,304 |
|
|
|
|
|
ug |
208 |
7
|
| 1945 |
|
Walnut Valley Coal Co., No. 1 |
Marion |
4,057 |
|
|
|
|
|
ug |
140 |
7
|
| 1946 |
|
Walnut Valley Coal Co., No. 1 |
Marion |
3,349 |
|
|
|
|
|
ug |
173 |
7
|
| 1947 |
|
Walnut Valley Coal Co. |
Marion |
3,036 |
|
|
|
|
|
ug |
133 |
7
|
| 1948 |
|
Walnut Valley Coal Co., No. 1 |
Marion |
5,889 |
|
slope |
65 |
#5 |
4.5 |
RP |
195 |
7
|
| 1949 |
|
Walnut Valley Coal Co. |
Marion |
1,653 |
29,658 |
|
|
|
|
ug |
48 |
7
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1950 |
|
New Walnut Valley Coal Co. |
Marion |
2,561 |
|
slope |
65 |
#5 |
4.5 |
RP |
104 |
6
|
| 1951 |
|
New Walnut Valley Coal Co. |
Marion |
380 |
2,941 |
|
|
|
|
|
28 |
6
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
71,571 |
|
|
|
|
|
|
|
