Lawrence sheets with Boston and Maine RR Trackage 
Roughly in order, North to South
 
1888 Maps 
 Mainline
 21
 26

 M&L Branch
 24
 23
 3-4
 5
 6
 21

 Sidings, north side of Merrimack R.
 14
 20
 6

 Sidings, south side of Merrimack R.
 22

 Lowell Branch
 26
 27

 Unknown
 13
 
1895 Maps 
 Mainline
 60
 38
 12
 13
 12
 3
 6-7
 60
 14
 
 
 M&L Branch
 63
 78
 76
 72
 60
 61
 43
 45
 44-18
 17
 15-22
 16-35-41
 23
 32
 11
 
 Sidings, north side of Merrimack R.
 23
 24
 25
 26
 27
 54-55
 38
 71
 
 Sidings, south side of Merrimack R.
 32
 Lowell & Lawrence Br Branch
 3
 2
 1
 
 
1911 Maps 
 Mainline
 86
 85
 84
 90
 89
 88
 96
 102-103
 109-107
 82
 
 M&L Branch
 45
 19-21
 14-22
 23
 24
 18-25
 81
 87-88
 
 Sidings, north side of Merrimack R.
 26
 81-33-34-36
 75-76
 77
 78
 
 Sidings, south side of Merrimack R.
 83
 84
 75
 
 Lowell Branch
 96
 95
 94-101(barely)
 
 
 
1949 and 1949-a Maps 
 Mainline
 86
 85
 84
 90
 89
 88
 96
 102-103
 109-107
 82
 
 M&L Branch
 45
 19-21
 14-22
 23
 24
 18-25
 81
 87-88
 
 Sidings, north side of Merrimack R.
 26
 81-33-34-36
 75-76
 77
 78
 
 Sidings, south side of Merrimack R.
 83
 84
 75
 
 Lowell Branch
 96
 95
 94-101(barely)
 69
 115
 
1956 Maps 
 Vol 1
   M&L Branch
	45
 	19-21
 	14-22
 	23
 	24
 	18-25
 	81
  Sidings, north side of Merrimack R.
 	81-34-36
 	75-76
 	77(?)
 	78

 Vol 2
   Mainline
 	86
 	85
 	84
 	90
 	89
 	88
 	96
 	102-103
 	109-107
	110-120
	121

   M&L Branch
  	87-88
  Sidings, south side of Merrimack R.
 	83
 	84
 	82
   Lowell Branch
	115
	112
	101
	94
	95
	96