First Parish Church, Groton - MA009 Additional Site Information Daniel Miles Purpose of Collection: Archaeological Dating Tree Species: White and Red Oak, Q. alba and Q. rubra Funding Sources: This material was paid for by a grant from the Massachusetts Historical Commission with matching grants from the Fairbanks Family Association, the Winthrop Improvement and Historical Association, and the Society for the Preservation of New England Antiquities (SPNEA) through an anonymous donation. Reference: Miles, D.W.H., M.J. Worthington, and A.A. Grady, 2002, Development of Standard Tree-ring Chronologies for Dating Historic Structures in Eastern Massachusetts, Phase II, Society for the Preservation of New England Antiquities, Interim Report 2002/6, Boston, MA. COFECHA output: Chronology file name : MA009.CRN Measurement file name : MA009.RWL Date checked : 22MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1598 Ending year : 1753 Principal investigators: D.Miles Site name : First Parish Church, Groton Site location : Mass. Species information : QUSP OAK Latitude : 4237 Longitude : -07135 Elevation : 15M Series intercorrelation: 0.473 Avg mean sensitivity : 0.142 Avg standard deviation : 0.350 Avg autocorrelation : 0.747 Number dated series : 11 Segment length tested : 50 Number problem segments: 10 Pct problem segments : 23.81 PART 5: CORRELATION OF SERIES BY SEGMENTS: ma009.rwl 10:35 Tue 22 Mar 2005 Page 5 ------------------------------------------------------------------------------------------------------------------------------------ Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1600 1625 1650 1675 1700 1725 1649 1674 1699 1724 1749 1774 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 gcg1 1616 1720 .64 .69 .50 .52 2 gcg2a 1626 1741 .52 .72 .68 .54 3 gcg2b 1640 1752 .70 .65 .62 .32A .29B 4 gcg3 1609 1707 .41 .57 .53B .67 5 gcg4 1682 1752 .63 .53 .47 6 gcg5 1642 1753 .50 .69 .40 .33A .38 7 gcg7 1640 1752 .65 .68 .52 .21B .26B 8 gcg8 1600 1751 .24A .41 .56 .45 .13B .04B 9 gcg9 1598 1704 .43 .63 .69 .66 10 gcg12a 1707 1745 .30A 11 gcg12b 1726 1753 .42 Av segment correlation .43 .58 .63 .57 .34 .31 PART 7: DESCRIPTIVE STATISTICS: ma009.rwl 10:35 Tue 22 Mar 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 gcg1 1616 1720 105 4 0 .600 1.29 1.79 .198 .515 .118 2.66 .483 -.045 1 2 gcg2a 1626 1741 116 4 0 .559 1.34 2.50 .371 .745 .143 2.36 .318 -.004 2 3 gcg2b 1640 1752 113 5 2 .507 1.41 2.72 .395 .768 .138 2.72 .440 -.018 1 4 gcg3 1609 1707 99 4 1 .512 1.38 2.15 .292 .685 .129 2.60 .452 .027 1 5 gcg4 1682 1752 71 3 0 .587 1.71 2.95 .493 .831 .128 3.03 .544 .087 2 6 gcg5 1642 1753 112 5 1 .392 1.12 2.13 .376 .837 .156 2.77 .467 -.033 1 7 gcg7 1640 1752 113 5 2 .463 1.15 1.98 .335 .734 .153 2.67 .495 -.058 1 8 gcg8 1600 1751 152 6 3 .297 .79 2.10 .292 .858 .146 2.73 .502 .040 1 9 gcg9 1598 1704 107 4 0 .528 1.20 2.35 .463 .802 .179 2.69 .508 .065 1 10 gcg12a 1707 1745 39 1 1 .296 1.80 2.83 .424 .790 .105 2.48 .422 -.038 2 11 gcg12b 1726 1753 28 1 0 .420 1.43 2.10 .240 .382 .129 2.66 .609 -.106 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1055 42 10 .473 1.26 2.95 .350 .747 .142 3.03 .467 .000