Hello Valerie, No relation or connection. Just trying to help. I checked the census and found Narcissa and John in the following census. However,the added information # below was submitted by a JL Walker to Ancestry. You could try ancestry for more details about Narcissa and John .
Name:Narsisa Walker [Narcissa Walker] Home in 1880:Scott, Mahaska, Iowa Age:56 Estimated Birth Year:abt 1824 Birthplace:Tennessee Relation to Head of Household:Wife Spouse's Name:John Walker Father's birthplace:North Carolina Mother's birthplace:Fin Neighbors:View others on page Occupation:Keeping House Marital Status:Married Race:White Household Members:NameAge John Walker56 Narsisa Walker56 John Walker23 Nancy Walker20 William Walker19 Samuel Walker11
Name:Jno T Walker Birth Year:abt 1825 Age in 1870:45 Birthplace:Tennessee Home in 1870:Jackson, Keokuk, Iowa Race:White Gender:Male Value of real estate:View image Post Office:Ioka Household Members:NameAge Jno T Walker45 Narcissa Walker45 D C Walker19 Margaret Walker15 J F Walker13 Nancy Walker10 W H Walker8 Sam S Walker2 J M Agnew32
1860.Household Members:NameAge Jno T Walker36 Norris/Narcissa A Walker36 D C Walker10 Margaret Walker5 J T Walker3 Nancy Walker5/12 R H C Mack25 J M Agnue23
Name:Narcissa Walker Age:25 Estimated Birth Year:abt 1825 Birth Place:Tennessee Gender:Female Home in 1850 (City,County,State):Finley, Greene, Missouri Household Members:NameAge John T Walker26 Narcissa Walker25 David C Walker0
-=-==--=-=-=-=-=-=-=-=-=-==-=- # The following was submitted by a JL Walker to Ancestry . com William Halleck Walker Birth 13 JUL 1862 in MISSOURI Death 21 APR 1927 in Iowa. =-=-=-=--==--==-=-=-=-=-=-=-=--==-=-
Narcissa Agnes Agnew Birth AUG 1825 in TN Death MAR 1902 in Mahaska, Scott, IA. Father.. Samuel Agnew Birth ABT 1800 in SC Mother..Jane Hill Birth ABT 1802 in , Sevier, TN Death BET 1870 AND 1880 in Prob. MO =-=--==-=--==-=-=-=-=--==-=-=-=-=-=-=--==-
John Talley Walker Birth 1824 in Tennessee, United States Death 1900 in Oswego, , KS . Father..David Walker Birth 1792 in East, Tennessee, United States Death 19 MAR 1863 in Linden, Christian, Missouri, United States. Mother.. Martha Margaret Pendleton Birth 05 NOV 1793 in Virginia, United States Death 17 FEB 1862 in Linden, Christian County, Missouri