Hi Genealogy Pals! Am sending this to the list in case anyone else has an interest in these names. I found them interchanged between Venango and Crawford. Here is the data for the McMillen and Collingwood Surnames: 1840 - Rockland Twp., Venango Charles Collingwood 3 males 5 - 10 2 males 10 - 15 3 males 15 - 20 3 males 20 - 30 1 male 50 - 60 1 female 5 - 10 1 female 20 - 30 1 female 40 - 50 1830 - Rockland Twp., Venango Charles Collingwood 3 males - 5 3 males 5 - 10 2 males 10 -15 1 male 15 - 20 1 male 20 - 30 1 male 40 - 50 1 female 10 - 15 2 females 15 - 20 1 female 30 - 40 1830 - Rockland Twp., Venango Daniel McMullen 1 male 10 - 15 2 males 15 - 20 1 male 20 - 30 1 male 50 - 60 1 female 15 - 20 2 females 20 - 30 1 female 50 - 60 next entry John McMullen 1 male 30 - 40 2 females - 4 1 female 20 - 30 next entry James McMullen 1 male 20 - 30 1 female 15 - 20 1820 - Rockland Twp., Venango Co. Daniel McMullen 3 males - 10 1 male 10 -16 1 male 16-18 3 males 18 - 26 1 male 45 and over 1 female - 10 1 female 10 - 16 2 females 16-26 1 female 45 and over 1810 - Scrubgrass Twp., Venango Co. John McMillen 3 males under 10 1 male 26-45 1 female under 10 1 female 16 - 26 1840 - Fairfield Twp., Crawford Co. John McMillen 1 male 20 - 30 1 male 30 - 40 1 male 60 -70 1 female 60 -70 Hayfield Twp., Crawford Co. John McMillen 1 male 20 - 30 1 female 15 - 20 Same page: Thomas & Janes Spring Twp., Crawford Co. John McMillen 1 male 40 - 50 2 females 5 - 10 1 female 30 - 40 Conneaut Twp., Crawford Co. John McMillen 1 male - 5 1 male 30 - 40 1 female - 5 2 females 5 - 10 1 females 10 - 15 1 female 30 - 40 1 female 60 -70 Summerhill Twp. Daniel McMillen 1 male - 5 2 males 5 - 10 1 male 10 - 15 1 male 40 - 50 1 female 15 - 20 1 female 30 - 40 1 female 50 - 60 Hope this helps, and if I can help you futher, let me know! Barb Seyler