Cases from cite.case.law:

FOLKERDS, A. C. v. UNITED STATES, 494 F.2d 749 (8th Cir. 1974)

. . . The Code of Iowa § 633.436 (1971) provides in part as follows: General order for abatement. . . . or the implied purpose of the devise would be defeated by the order of abatement stated in section 633.436 . . . Section 633.436 is an attempt to approximate the probable intent of the majority of testators had the . . . “The Bar Committee Comment found at 47 I.C.A., section 633.436, page 249 reads: ‘Adapted from section . . . a contrary order of abatement only in that unusual case where the general scheme provided for in § 633.436 . . .

FOLKERDS, A. C. v. UNITED STATES, 369 F. Supp. 1176 (N.D. Iowa 1973)

. . . the statute in the Iowa Probate Code prescribing the general order for abatement (Iowa Code Section 633.436 . . . July 20, 1970, the State District Court held that the general order of abatement contained in Section 633.436 . . . the plain terms of the section to the extent of the surviving spouse’s interest. * * * “If section 633.436 . . . Iowa Code Section 633.436 provides as follows : General order for abatement. . . . or the implied purpose of the devise would be defeated by the order of abatement stated in section 633.436 . . .