1854-1855
Student in the Collegiate Department at Cumberland University in Lebanon, Tennessee [W. P. Gillespie, Madisonville, Tennessee]
[Source: Catalogue of the Officers and Students of Cumberland University at Lebanon, Tennessee, for the Academic Year 1854-5, page 29]

1855-1856
Undergraduate Student in the Collegiate Deparment, also listed in Theological Department, at Cumberland University in Lebanon, Tennessee [William P. Gillespie, Madisonville, Tennessee]
[Source: Catalogue of the Officers and Students of Cumberland University, at Lebanon, Tennessee, for the Academic Year 1855-6, pages 7 & 19]

1856-1857
Student in the Collegiate Department, Junior Class, also listed in Theological Department, at Cumberland University in Lebanon, Tennessee [William P. Gillespie, Madisonville, Tennessee]
[Source: Catalogue of the Officers and Students of Cumberland University, at Lebanon, Tennessee, for the Academic Year 1856-7 pages 6 & 20]

1857-1858 catalogue not in our archives.

1860-1861
Cane Hill College - Boonsboro, Washington County, Arkansas
In June,1860, Prof. Lowry resigned. The Rev. W. P. Gillespie was afterward elected to fill the vacancy. The school prospered until 1861.
[Source: McDonnold, B.W. History of the Cumberland Presbyterian Church. Nashville, Tenn.: Board of Publication of Cumberland Presbyterian Church, 1888, page 577.
http://www.cumberland.org/hfcpc/mcdonold/42-49.htm

1865
Minister - Arkansas Presbytery
Minister absent - W. P. Gillespie (2)
[Source: Minutes of Arkansas Presbytery, September 8, 1865, page 88]

1866
Minister absent - W. P. Gillespie
Whereas the following named ministers of this Presbytery: W. P. Gillespie, Newton Givens, R. G. Steele, W. G. L. Quaite, have attached themselves to other Presbyteries without letters of dismission from this - they being unable on account of the disturbed state of the country to obtain letters - therefore Resolved that their names be dropped from the roll of ministers of this Presbytery.
[Source: Minutes of Arkansas Presbytery, March 2, 1866, pages 90 & 92]

1868
W. P. Gillespie - Commissioner to General Assembly from Red Oak Presbytery (Brazos Synod)
38th General Assembly of the Cumberland Presbyterian Church, May 21, 1868-May 29, 1868, in Lincoln, Illinois
Served on Committee on the Minutes of Missouri Synod.
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1868, pages 5 & 12]

1869
W. P. Gillespie, Waxahachie, Texas
Minister - Red Oak Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1869, page 86]

1870
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1870, page 84]

1871
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1871, page 85]

1872
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1872, page 121]

1873
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1873, page 98]

1874
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1874, page 97]

1875
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1875, page 86]

1876
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1876, page 96]

1877
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1877, page 91]

1878
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1878, page 100]

1879
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1879, page 96]

1880
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1880, page 123]

1881
Not in List of Ministerial Directory

1882
Gillespie, W. P., Pleasant Point, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1882, page 125]

1883
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1883, page 133]

1884
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1884, page 122]

1885
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1885, page 138]

1886
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1886, page 166]

1887
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1887, page 163]

1888
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Brazos Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1888, page 175]

1889
Gillespie, W. P., Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1889, page 184]

1890
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1890, page 131]

1891
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1891, page 145]

1892
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1892, page 153]

1893
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1893, page 155]

1894
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1894, page 170]

1895
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1895, page 177]

1896
Gillespie, W. P., Tehuacana, Texas
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1896, page 163]

1897
Gillespie, Wm. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1897, page 286]

1898
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1898, page 301]

1899
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1899, page 205a]

1900
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1900, page 219a]

1901
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1901, page, 277a]

1902
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1902, page 230a]

1903
Gillespie, W. P. (w c), Tehuacana, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1903, page 215a]

1904
Gillespie, W. P., retired, Prairiegrove, Tex.
Minister - Tehuacana Presbytery (Texas Synod)
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1904 page 194a]

1905
Ordained Ministers Deceased
Name: W. P. Gillespie
Occupation: retired
Presbytery: Corsicana
Place of Residence: Prairie Grove, Tex.
Date: Jan. 6, 1905
Age: 78
[Source: Minutes of the General Assembly of the Cumberland Presbyterian Church, 1905, page 148a]