Thank you so much for responding to my message board posting.
Here is some of the material I've located since posting my original query:
Howard Packard died Feb 7, 1890 in Stillwater, Washington Cty, Minnesota (Certificate of Death of Minnesota Cty of Washington #A-219-24)
Howard's daughter Leonara A. died Sep 24, 1921 (Fairview Cemetery Assn Burial record at Stillwater, Minnesota)
Howard's daughter Emma died Feb 8, 1892 (Fairview Cemetery Assn Burial record at Stillwater, Minnesota)
Howard's son Samuel Taylor Packard, my gt grandfather, died Jun 11, 1932 in Carrington, Foster Cty, North Dakota (Certificate of Death of North Dakota #1578)
Gould Cemetery, Smithfield, Maine: Taylor, Isaiah, d. November 28, 1870, aet 71 yrs. 4 mos. 16dys Mehitable, his wife, d. September 16, 1879, aet 73yrs Joseph P., their son, d. December 7, 1853, aet 22 yrs. 9mos. Mary L., their dau., d. July 24, 1851, aet 19yrs Isaiah C., their son. d. July 29, 1853, aet 18yrs. 11 mos. Samuel, their son, d. May 23, 1862, aet 36yrs Samuel, son of Samuel and Henrietta H. Taylor, d. January 13, 1863, aet 1 yr. 5 dys.