493 The visual binary HIP 495AB at 573" is co-moving, same parallax. HIP 493 is ~1.3" below the main sequence in the (K, V-K) color-magnitude diagram.
  5697 The SB1 orbit suggests mass ratio q>0.2 and axis 0.21". The companion is probably just a bit too faint or too close to be resolved with NICI.
  6273 Two astrometric orbits are derived by Goldin & Makarov (2006ApJS..166..341G), the longest one has P=8.93yr, axis 55mas, and e=0.84.
  6712 Possible physical companion at 24.4", 227{deg} in 2MASS (Cat. II/246).
  8653 Small acceleration of 2mas/yr^2^, possibly single.
 11072 The astrometric binary with 26.5yr orbit has a massive secondary with q~1 (see the text).
 11537 The 4" companion is partially resolved in 2MASS images, for that reason the star is not found in the 2MASS point-source catalog (Cat. II/246). The companion is physical, because it keeps the same position for 10yr despite PM of 0.2"/yr. This is a pre-main-sequence star according to SIMBAD.
 12425 A faint companion near the detection limit is found, our measures are uncertain. The estimated long period P~100yr suggests that Hipparcos acceleration of 17mas/yr^2^ is spurious.
 12716 Triple. The A-component is 0.955d SB2; the tertiary is resolved with speckle. As A is located some 1.7" above the main sequence, the object can be closer than indicated by the Hipparcos parallax of 24.6mas.
 12843 Despite a large acceleration of 26mas/yr^2^, no RV variability was found in the GCS (Cat. V/130) from two measures.
 14527 The companion with q=0.29 is resolved with NICI but unresolved with speckle, being too faint in the optical.
 16370 The double-lined SB detected in GCS (Cat. V/130) is resolved by speckle. Its estimated orbital period of 4yr explains the acceleration.
 16853 Likely triple. The inner pair produces RV variability and acceleration, the outer companion at 2.7" is discovered with NICI.
 17895 Triple. The RV amplitude of 9.5km/s-1 and double lines seen in GCS (Cat. V/130) cannot be caused by the visual system YR 23 with estimated period of ~50yr which could however be responsible for {Delta}{mu}.
 21008 Member of the Hyades (vB 81) and "probable SB" according to Griffin et al. (1988AJ.....96..172G). This WDS pair PAT 10 was resolved by speckle.
 21053 Hyades. The 0.3" binary PAT 11 was not resolved by speckle. The GCS (Cat. V/130) did not detect RV variability despite large scatter of 4.8km/s in their three measures.
 21079 Possibly triple. The new companion at 1.6" should not produce RV variability by 3.8km/s.
 21543 Hyades. The visual companion CHR 153 at 0.54" shows only linear motion (Hartkopf et al., 2012, Cat. J/AJ/143/42), it can be another member of Hyades or a wide pair in projection. The acceleration could be produced by the 1.8yr SB companion.
 21778 Resolved with NICI, uncertain measure. Not resolved with speckle.
 22221 Hyades. The 0.1" pair PAT 16 was not resolved with speckle; its estimated period is 7yr.
 22387 The companion is close to the detection limit, but it is considered to be real. The measurement is uncertain.
 24336 The 1.25" companion discovered with NICI is hardly the one that produced the acceleration of 17mas/yr^2^.
 24419 The acceleration is due to the 2.2yr SB with estimated axis of 55mas and q>0.14. The companion is too faint and close to be resolved with NICI or speckle. The system is triple with a faint common-proper-motion (CPM) companion at 14.6".
 25148 The companion at 66mas is at the diffraction limit, the NICI measurement is not accurate. The pair can be resolved by speckle.
 25180 Large RV amplitude (31.7km/s) hints at short orbital period, but only small {Delta}{mu}=3/mas/yr is detected by Hipparcos. Triple?
 28241 A triple system consisting of the 0.54" inner pair resolved with NICI and the physical companion B at 11".
 29860 The 27yr pair CAT 1 with computed visual (Hartkopf et al., 2012, Cat. J/AJ/143/42) and SB orbits is responsible for {Delta}{mu}. Triple with the CPM companion LEP 24 AE at 103".
 37853 Triple system at 15pc. The inner astrometric pair with large {Delta}{mu} is resolved with speckle. It is accompanied by the white dwarf NLTT 18141 = GJ 288B at 914".
 44874 Possibly triple: the known companion RST 2610 at 1.7" with estimated period 500yr is unlikely to cause the RV variability and {Delta}{mu}.
 50870 The 1.1" speckle companion can explain {Delta}{mu}, but not the acceleration.
 53217 Triple with inner SB1 of 6.8days and outer SB system of estimated 3.3yr period which produces large acceleration. The estimated axis is 40mas, unresolved with speckle.
 55714 The 0.1" pair CHR 242 has only 1 observation in the WDS (Cat. B/wds), unresolved with speckle. Double lines were noted by the GCS (Cat. V/130). This star remains a mystery.
 64219 Triple: the inner SB1 of 20.4day period has tertiary companion TOK 28 at 0.31" with mass ratio of 0.2 which produces the acceleration and {Delta}{mu}. This tertiary is too faint to be resolved in the optical.
 67620 The 10.3yr SB1 orbit by Abt & Willmarth (2006, Cat. J/ApJS/162/207) matches the speckle pair WSI 77 and explains the large {Delta}{mu}.
 73241 The 14.9 yr SB1 orbit is mentioned by Raghavan et al. (2010, Cat. J/ApJS/190/1).
 92103 The NICI images are of poor quality resulting in a shallow detection limit (at 0.2", {Delta}K<3 and {Delta}H<2).
 97676 NICI resolved the astrometric binary with variable RV. Triple system with a CPM companion at 83".
103260 The known 3.9" pair I 18 with estimated period ~1700yr cannot explain the acceleration.
103987 The 1yr SB with large acceleration has been resolved with speckle. However, we cannot exclude that it is a triple system.
108095 NICI images contain a hint of faint companion at ~280{deg}, 0.12", not accepted as real.
109067 The 4.6yr SB1 with estimated q>0.23 and axis 53mas is below the NICI detection limit. This is a sub-dwarf with large PM, below the main sequence.
109443 Possibly triple. The 1.4" companion found with NICI cannot explain the RV variability and acceleration.
114313 SB1 with P=3.1yr, estimated q>0.15. The orbital axis is 31mas, too close for NICI. Large acceleration.
115505 {Delta}{mu} is explained by the newly resolved 0.5" pair. Triple with companion at 13.8" in 2MASS (Cat. II/246). This companion is measured with NICI as well at the same position, its colors matching a low-mass dwarf. Considering the low density of background stars, the companion is physical, although we cannot confirm it as CPM owing to the small PM of the main target.